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lftp(1) 										  lftp(1)

NAME
       lftp - Sophisticated file transfer program

SYNTAX
       lftp [-d] [-e cmd] [-p port] [-u user[,pass]] [site]
       lftp -f script_file
       lftp -c commands
       lftp --version
       lftp --help


VERSION
       This man page documents lftp version 4.4.6.

DESCRIPTION
       lftp  is a file transfer program that allows sophisticated FTP, HTTP and other connections
       to other hosts. If site is specified then lftp will connect to that site otherwise a  con-
       nection has to be established with the open command.

       lftp can handle several file access methods - FTP, FTPS, HTTP, HTTPS, HFTP, FISH, SFTP and
       file (HTTPS and FTPS are only available when lftp is compiled  with  GNU  TLS  or  OpenSSL
       library).  You  can  specify  the  method  to  use  in  `open  URL'  command,  e.g.  `open
       http://www.us.kernel.org/pub/linux'. HFTP is ftp-over-http-proxy protocol. It can be  used
       automatically  instead of FTP if ftp:proxy is set to `http://proxy[:port]'. Fish is a pro-
       tocol working over an ssh connection to a unix account. SFtp is a protocol implemented  in
       SSH2 as SFTP subsystem.

       Besides FTP-like protocols, lftp has support for BitTorrent protocol as `torrent' command.
       Seeding is also supported.

       Every operation in lftp is reliable, that is any not-fatal error is ignored and the opera-
       tion  is repeated. So if downloading breaks, it will be restarted from the point automati-
       cally. Even if FTP server does not support the REST command, lftp will try to retrieve the
       file from the very beginning until the file is transferred completely.

       lftp  has shell-like command syntax allowing you to launch several commands in parallel in
       background (&). It is also possible to group commands within () and execute them in  back-
       ground. All background jobs are executed in the same single process. You can bring a fore-
       ground job to background with ^Z (c-z) and back with command  `wait'  (or  `fg'	which  is
       alias  to `wait'). To list running jobs, use command `jobs'. Some commands allow redirect-
       ing their output (cat, ls, ...) to file or via pipe to external command. Commands  can  be
       executed conditionally based on termination status of previous command (&&, ||).

       If you exit lftp before all jobs are not finished yet, lftp will move itself to nohup mode
       in background. The same thing happens with a real modem hangup or when you close an xterm.

       lftp has built-in mirror which can download or update a whole  directory  tree.	There  is
       also  reverse mirror (mirror -R) which uploads or updates a directory tree on server. Mir-
       ror can also synchronize directories between two remote servers, using FXP if available.

       There is command `at' to launch a job  at  specified  time  in  current	context,  command
       `queue' to queue commands for sequential execution for current server, and much more.

       On  startup, lftp executes /etc/lftp.conf and then ~/.lftprc and ~/.lftp/rc. You can place
       aliases and `set' commands there. Some people prefer  to  see  full  protocol  debug,  use
       `debug'	to  turn the debug on. Use `debug 3' to see only greeting messages and error mes-
       sages.

       lftp has a number of settable variables. You can use `set -a' to  see  all  variables  and
       their  values  or `set -d' to see list of defaults.  Variable names can be abbreviated and
       prefix can be omitted unless the rest becomes ambiguous.

       If lftp was compiled with OpenSSL (configure --with-openssl) it includes  software  devel-
       oped by the OpenSSL Project for use in the OpenSSL Toolkit. (http://www.openssl.org/)

   Commands
       ! shell command

       Launch shell or shell command.

	    !ls

       To do a directory listing of the local host.

       alias  [name [value]]

       Define  or undefine alias name. If value is omitted, the alias is undefined, else it takes
       the value value. If no argument is given the current aliases are listed.

	    alias dir ls -lF
	    alias less zmore

       at time [ -- command ]

       Wait until the given time and execute given (optional) command. See also at(1).

       attach  [PID]

       Attach the terminal to specified backgrounded lftp process.

       bookmark  [subcommand]

       The bookmark command controls bookmarks.

       Site names can be used in the open command directly as-is or in any command  that  accepts
       input URLs using the bm:site/path format.

	    add <name> [<loc>]	 add  current  place  or  given location to bookmarks and bind to
				 given name
	    del <name>		 remove bookmark with name
	    edit		 start editor on bookmarks file
	    import <type>	 import foreign bookmarks
	    list		 list bookmarks (default)

       cache  [subcommand]

       The cache command controls local memory cache.  The following subcommands are recognized:

	    stat	print cache status (default)
	    on|off	turn on/off caching
	    flush	flush cache
	    size lim	set memory limit, -1 means unlimited
	    expire Nx	set cache expiration time to N seconds (x=s) minutes (x=m) hours (x=h) or
			days (x=d)

       cat files

       cat outputs the remote file(s) to stdout.  (See also more, zcat and zmore)

       cd rdir

       Change  current remote directory.  The previous remote directory is stored as `-'. You can
       do `cd -' to change the directory back.	The previous directory	for  each  site  is  also
       stored on disk, so you can do `open site; cd -' even after lftp restart.

       chmod mode files

       Change permission mask on remote files. The mode must be an octal number.

       close [-a]

       Close idle connections.	By default only with the current server, use -a to close all idle
       connections.

       cls [OPTS] files...

       `cls' tries to retrieve information about specified files or directories and  outputs  the
       information  according  to  format  options. The difference between `ls' and `cls' is that
       `ls' requests the server to format file	listing,  and  `cls'  formats  it  itself,  after
       retrieving all the needed information.  See `help cls' for options.

       command cmd args...

       execute given command ignoring aliases.

       debug [-o file] level|off

       Switch debugging to level or turn it off.  Use -o to redirect the debug output to a file.

       echo [-n] string

       Prints (echos) the given string to the display.

       eval [-f format ] args...

       without	-f  it	executes given arguments as a command. With -f, arguments are transformed
       into a new command. The format can contain plain text and  placeholders	$0...$9  and  $@,
       corresponding to the arguments.

       exit [bg] [top] [kill] [code]

       exit  will  exit  from  lftp  or move to background if there are active jobs. If no job is
       active, code is passed to operating system as lftp's termination status. If code is  omit-
       ted, the exit code of last command is used.

       `exit bg' forces moving to background when cmd:move-background is false.  `exit top' makes
       top level `shell' (internal lftp command executor) terminate.  `exit kill' kills all  num-
       bered  jobs  before exiting. The options can be combined, e.g.  `at 08:00 -- exit top kill
       &' kills all jobs and makes lftp exit at specified time.

       fg

       Alias for `wait'.

       find  [directory]

       List files in the directory (current directory by default)  recursively.   This	can  help
       with servers lacking ls -R support. You can redirect output of this command.

       ftpcopy

       Obsolete. Use one of the following instead:
	    get ftp://... -o ftp://...
	    get -O ftp://... file1 file2...
	    put ftp://...
	    mput ftp://.../*
	    mget -O ftp://... ftp://.../*
       or  other combinations to get FXP transfer (directly between two FTP servers).  lftp would
       fallback to plain copy (via client) if FXP transfer cannot be initiated or ftp:use-fxp  is
       false.

       get [-E] [-a] [-c] [-e] [-O base] rfile [-o lfile] ...

       Retrieve  the  remote  file rfile and store it as the local file lfile.	If -o is omitted,
       the file is stored to local file named as base name of rfile. You can get  multiple  files
       by  specifying  multiple instances of rfile (and -o lfile). Does not expand wildcards, use
       mget for that.

	    -c		continue, reget
	    -E		delete source files after successful transfer
	    -e		delete target file before the transfer
	    -a		use ascii mode (binary is the default)
	    -O <base>	specifies base directory or URL where files should be placed

       Examples:
	    get README
	    get README -o debian.README
	    get README README.mirrors
	    get README -o debian.README README.mirrors -o debian.mirrors
	    get README -o ftp://some.host.org/debian.README
	    get README -o ftp://some.host.org/debian-dir/   (end slash is important)

       get1 [OPTS] rfile

       Transfer a single file. Options:

	    -o <lfile>			destination file name (default - basename of rfile)
	    -c				continue, reget
	    -E				delete source files after successful transfer
	    -a				use ascii mode (binary is the default)
	    --source-region=<from-to>	transfer specified region of source file
	    --target-position=<pos>	position in target file to write data at

       glob [-d] [-a] [-f] command patterns

       Glob given patterns containing metacharacters and pass  result  to  given  command.   E.g.
       ``glob echo *''.

	    -f	 plain files (default)
	    -d	 directories
	    -a	 all types

       help [cmd]

       Print help for cmd or if no cmd was specified print a list of available commands.

       jobs [-v] [job_no...]

       List running jobs. -v means verbose, several -v can be specified.  If job_no is specified,
       only list a job with that number.

       kill all|job_no

       Delete specified job with job_no or all jobs.  (For job_no see jobs)

       lcd ldir

       Change current local directory ldir. The previous local directory is stored  as	`-'.  You
       can do `lcd -' to change the directory back.

       ln [-s] existing-file new-link

       Make  a	hard/symbolic link to an existing file.  Option -s selects creation of a symbolic
       link.

       local command

       Run specified command with local directory file://  session  instead  of  remote  session.
       Examples:
	    local pwd
	    local ls
	    local mirror /dir1 /dir2

       lpwd

       Print current working directory on local machine.

       ls params

       List remote files. You can redirect output of this command to file or via pipe to external
       command.  By default, ls output is cached, to see new listing use rels or cache flush.

       mget [-c] [-d] [-a] [-E] [-O base] files

       Gets selected files with expanded wildcards.

	    -c		continue, reget.
	    -d		create directories the same as file names and get  the	files  into  them
			instead of current directory.
	    -E		delete source files after successful transfer
	    -a		use ascii mode (binary is the default)
	    -O <base>	specifies base directory or URL where files should be placed

       mirror [OPTS] [source [target]]

       Mirror specified source directory to local target directory. If target directory ends with
       a slash, the source base name is appended to target directory name. Source  and/or  target
       can be URLs pointing to directories.

	    -c,    --continue		     continue a mirror job if possible
	    -e,    --delete		     delete files not present at remote site
		   --delete-first	     delete old files before transferring new ones
		   --depth-first	     descend   into  subdirectories  before  transferring
					     files
	    -s,    --allow-suid 	     set suid/sgid bits according to remote site
		   --allow-chown	     try to set owner and group on files
		   --ascii		     use ascii mode transfers (implies --ignore-size)
		   --ignore-time	     ignore time when deciding whether to download
		   --ignore-size	     ignore size when deciding whether to download
		   --only-missing	     download only missing files
		   --only-existing	     download only files already existing at target
	    -n,    --only-newer 	     download only newer files (-c won't work)
		   --no-empty-dirs	     don't    create	empty	 directories	 (implies
					     --depth-first)
	    -r,    --no-recursion	     don't go to subdirectories
		   --no-symlinks	     don't create symbolic links
	    -p,    --no-perms		     don't set file permissions
		   --no-umask		     don't apply umask to file modes
	    -R,    --reverse		     reverse mirror (put files)
	    -L,    --dereference	     download symbolic links as files
	    -N,    --newer-than=SPEC	     download only files newer than specified time
		   --on-change=CMD	     execute the command if anything has been changed
		   --older-than=SPEC	     download only files older than specified time
		   --size-range=RANGE	     download only files with size in specified range
	    -P,    --parallel[=N]	     download N files in parallel
		   --use-pget[-n=N]	     use pget to transfer every single file
		   --loop		     loop until no changes found
	    -i RX, --include RX 	     include matching files
	    -x RX, --exclude RX 	     exclude matching files
	    -I GP, --include-glob GP	     include matching files
	    -X GP, --exclude-glob GP	     exclude matching files
	    -v,    --verbose[=level]	     verbose operation

		   --log=FILE		     write lftp commands being executed to FILE
		   --script=FILE	     write lftp commands to FILE, but don't execute them
		   --just-print, --dry-run   same as --script=-
		   --use-cache		     use cached directory listings
		   --Remove-source-files     remove files after transfer (use with caution)
	    -a				     same as --allow-chown --allow-suid --no-umask

       When  using  -R,  the  first  directory	is local and the second is remote.  If the second
       directory is omitted, base name of first directory is used.  If both directories are omit-
       ted, current local and remote directories are used.  If target directory ends with a slash
       (except root directory) then base name of source directory is appended.

       RX is an extended regular expression, just like in egrep(1).

       GP is a glob pattern, e.g. `*.zip'.

       Include and exclude options can be specified multiple times.  It  means	that  a  file  or
       directory  would be mirrored if it matches an include and does not match to excludes after
       the include, or does not match anything and the first check is  exclude.  Directories  are
       matched with a slash appended.

       Note that symbolic links are not created when uploading to remote server, because FTP pro-
       tocol cannot do it. To upload files the links refer to, use `mirror  -RL'  command  (treat
       symbolic links as files).

       For options --newer-than and --older-than you can either specify a file or time specifica-
       tion like that used by at(1) command, e.g.  `now-7days' or `week ago'. If  you  specify	a
       file, then modification time of that file will be used.

       Verbosity  level  can  be  selected using --verbose=level option or by several -v options,
       e.g. -vvv. Levels are:
	    0 - no output (default)
	    1 - print actions
	    2 - +print not deleted file names (when -e is not specified)
	    3 - +print directory names which are mirrored

       --only-newer turns off file size comparison and uploads/downloads only newer files even if
       size is different. By default older files are transferred and replace newer ones.

       You  can  mirror  between  two servers if you specify URLs instead of directories.  FXP is
       automatically used for transfers between FTP servers, if possible.

       Some FTP servers hide dot-files by default (e.g. .htaccess), and show them only when  LIST
       command is used with -a option. In such case try to use `set ftp:list-options -a'.

       mkdir [-p] dir(s)

       Make remote directories. If -p is used, make all components of paths.

       module module [ args ]

       Load given module using dlopen(3) function. If module name does not contain a slash, it is
       searched in directories specified by module:path variable.  Arguments are passed  to  mod-
       ule_init function. See README.modules for technical details.

       more files

       Same  as  `cat  files | more'. if PAGER is set, it is used as filter.  (See also cat, zcat
       and zmore)

       mput [-c] [-d] [-a] [-E] [-O base] files

       Upload files with wildcard expansion. By default it uses the base name of  local  name  as
       remote one. This can be changed by `-d' option.

	    -c		continue, reput
	    -d		create	directories the same as in file names and put the files into them
			instead of current directory
	    -E		delete source files after successful transfer (dangerous)
	    -a		use ascii mode (binary is the default)
	    -O <base>	specifies base directory or URL where files should be placed

       mrm file(s)

       Same as `glob rm'. Removes specified file(s) with wildcard expansion.

       mv file1 file2

       Rename file1 to file2.

       nlist [args]

       List remote file names

       open [-e cmd] [-u user[,pass]] [-p port] host|url

       Select a FTP server.

       pget [OPTS] rfile [-o lfile]

       Gets the specified file using several connections. This can speed up transfer,  but  loads
       the  net and server heavily impacting other users. Use only if you really have to transfer
       the file ASAP.  Options:

	    -c		 continue transfer. Requires lfile.lftp-pget-status file.
	    -n maxconn	 set maximum number of connections (default is taken from  pget:default-n
			 setting)

       put [-E] [-a] [-c] [-O base] lfile [-o rfile]

       Upload  lfile  with  remote  name  rfile. If -o omitted, the base name of lfile is used as
       remote name. Does not expand wildcards, use mput for that.

	    -o <rfile>	 specifies remote file name (default - basename of lfile)
	    -c		 continue, reput. It requires permission to overwrite remote files
	    -E		 delete source files after successful transfer (dangerous)
	    -a		 use ascii mode (binary is the default)
	    -O <base>	 specifies base directory or URL where files should be placed

       pwd [-p]

       Print current remote URL. Use `-p' option to show password in the URL.

       queue [-n num ] cmd

       Add the given command to queue for sequential execution. Each site has its own queue. `-n'
       adds the command before the given item in the queue. Don't try to queue `cd' or `lcd' com-
       mands, it may confuse lftp. Instead do the cd/lcd before  `queue'  command,  and  it  will
       remember  the  place  in  which	the  command is to be done. It is possible to queue up an
       already running job by `queue wait <jobno>', but the job will continue execution  even  if
       it is not the first in queue.

       `queue  stop'  will stop the queue, it will not execute any new commands, but already run-
       ning jobs will continue to run. You can use `queue stop' to create an empty stopped queue.
       `queue  start' will resume queue execution.  When you exit lftp, it will start all stopped
       queues automatically.

       `queue' with no arguments will either create a stopped queue or print queue status.

       queue --delete|-d [index or wildcard expression]

       Delete one or more items from the queue. If no argument is given, the last  entry  in  the
       queue is deleted.

       queue --move|-m <index or wildcard expression> [index]

       Move  the  given  items	before	the given queue index, or to the end if no destination is
       given.

	    -q	 Be quiet.
	    -v	 Be verbose.
	    -Q	 Output in a format that can be used to re-queue. Useful with --delete.

       Examples:
	    > get file &
	    [1] get file
	    > queue wait 1
	    > queue get another_file
	    > cd a_directory
	    > queue get yet_another_file

	    queue -d 3		   Delete the third item in the queue.
	    queue -m 6 4	   Move the sixth item in the queue before the fourth.
	    queue -m "get*zip" 1   Move all commands matching "get*zip" to the beginning  of  the
				   queue.  (The order of the items is preserved.)
	    queue -d "get*zip"	   Delete all commands matching "get*zip".

       quote cmd

       For FTP - send the command uninterpreted. Use with caution - it can lead to unknown remote
       state and thus will cause reconnect. You cannot be sure that any change	of  remote  state
       because of quoted command is solid - it can be reset by reconnect at any time.

       For  HTTP - specific to HTTP action. Syntax: ``quote <command> [<args>]''.  Command may be
       ``set-cookie'' or ``post''.
	    open http://www.site.net
	    quote set-cookie "variable=value; othervar=othervalue"
	    set http:post-content-type application/x-www-form-urlencoded
	    quote post /cgi-bin/script.cgi "var=value&othervar=othervalue" > local_file

       For FISH - send the command uninterpreted. This can be used to execute arbitrary  commands
       on server. The command must not take input or print ### at new line beginning. If it does,
       the protocol will become out of sync.
	    open fish://server
	    quote find -name \*.zip

       reget rfile [-o lfile]

       Same as `get -c'.

       rels [args]

       Same as `ls', but ignores the cache.

       renlist [args]

       Same as `nlist', but ignores the cache.

       repeat [OPTS] [[-d] delay] [command]

       Repeat specified command with a delay between iterations.  Default delay  is  one  second,
       default command is empty.

	    -c <count>	  maximum number of iterations
	    -d <delay>	  delay between iterations
	    --while-ok	  stop when command exits with non-zero code

	    --until-ok	  stop when command exits with zero code
	    --weak	  stop when lftp moves to background.

       Examples:
	    repeat at tomorrow -- mirror
	    repeat 1d mirror

       reput lfile [-o rfile]

       Same as `put -c'.

       rm [-r] [-f] files

       Remove  remote  files.	Does  not expand wildcards, use mrm for that. -r is for recursive
       directory remove. Be careful, if something goes wrong you  can  lose  files.  -f  suppress
       error messages.

       rmdir dir(s)

       Remove remote directories.

       scache [session]

       List cached sessions or switch to specified session.

       set [var [val]]

       Set  variable  to given value. If the value is omitted, unset the variable.  Variable name
       has format ``name/closure'', where closure can specify exact application of  the  setting.
       See  below  for details.  If set is called with no variable then only altered settings are
       listed.	It can be changed by options:

	    -a	 list all settings, including default values
	    -d	 list only default values, not necessary current ones

       site site_cmd

       Execute site command site_cmd and output the result.  You can redirect its output.

       sleep interval

       Sleep given time interval and exit. Interval is in seconds by default, but can be suffixed
       with 'm', 'h', 'd' for minutes, hours and days respectively.  See also at.

       slot [name]

       Select  specified  slot	or  list all slots allocated. A slot is a connection to a server,
       somewhat like a virtual console. You can create	multiple  slots  connected  to	different
       servers	and switch between them. You can also use slot:name as a pseudo-URL evaluating to
       that slot location.

       Default readline binding allows quick switching between slots named  0-9  using	Meta-0	-
       Meta-9 keys (often you can use Alt instead of Meta).

       source file
       source -e command

       Execute commands recorded in file file or returned by specified external command.
	    source ~/.lftp/rc
	    source -e echo help

       suspend

       Stop lftp process. Note that transfers will be also stopped until you continue the process
       with shell's fg or bg commands.

       torrent [OPTS] torrent-files...

       Start BitTorrent process for the given torrent-files, which can be a local file, URL, mag-
       net  link or plain info_hash written in hex.  Local wildcards are expanded. Existing files
       are first validated unless --force-valid option is given. Missing pieces  are  downloaded.
       Files  are  stored in specified directory or current working directory by default. Seeding
       continues until ratio reachs torrent:stop-on-ratio setting or  time  of	torrent:seed-max-
       time outs.

       Options:

	    -O <directory>	     specifies base directory where files should be placed
	    --force-valid	     skip file validation (if you are sure they are ok).
	    --dht-bootstrap=<node>   bootstrap	DHT  by  sending  a query to specified node. E.g.
				     dht.transmissionbt.com:6881.  This  option  should  be  used
				     just once to fill local node cache.

       user user [pass]
       user URL [pass]

       Use  specified  info  for  remote login. If you specify an URL with user name, the entered
       password will be cached so that future URL references can use it.

       version

       Print lftp version.

       wait [jobno]
       wait all

       Wait for specified job to terminate. If jobno is omitted, wait for last backgrounded job.

       `wait all' waits for all jobs to terminate.

       zcat files

       Same as cat, but filter each file through zcat. (See also cat, more and zmore)

       zmore files

       Same as more, but filter each file through zcat. (See also cat, zcat and more)

   Settings
       On startup, lftp executes ~/.lftprc and ~/.lftp/rc.  You can place aliases and `set'  com-
       mands  there. Some people prefer to see full protocol debug, use `debug' to turn the debug
       on.

       There is also a system-wide startup file in /etc/lftp.conf.  It can be in different direc-
       tory, see FILES section.

       lftp  has the following settable variables (you can also use `set -a' to see all variables
       and their values):

       bmk:save-passwords (boolean)
	      save plain text passwords in ~/.lftp/bookmarks on `bookmark add' command.   Off  by
	      default.

       cache:cache-empty-listings (boolean)
	      When false, empty listings are not cached.

       cache:enable (boolean)
	      When false, cache is disabled.

       cache:expire (time interval)
	      Positive cache entries expire in this time interval.

       cache:expire-negative (time interval)
	      Negative cache entries expire in this time interval.

       cache:size (number)
	      Maximum cache size. When exceeded, oldest cache entries will be removed from cache.

       cmd:at-exit (string)
	      the commands in string are executed before lftp exits or moves to background.

       cmd:at-exit-bg (string)
	      the commands in string are executed before backgrounded lftp exits.

       cmd:at-exit-fg (string)
	      the commands in string are executed before foreground lftp exits.

       cmd:at-background (string)
	      the commands in string are executed before lftp moves to background.

       cmd:at-terminate (string)
	      the  commands in string are executed before lftp terminates (either backgrounded or
	      foreground).

       cmd:at-finish (string)
	      the commands in string are executed once when all jobs are done.

       cmd:at-queue-finish (string)
	      the commands in string are executed once when all jobs in a queue are done.

       cmd:cls-completion-default (string)
	      default cls options for displaying completion choices. For example, to make comple-
	      tion listings show file sizes, set cmd:cls-completion-default to `-s'.

       cmd:cls-default (string)
	      default cls command options. They can be overridden by explicitly given options.

       cmd:cls-exact-time (boolean)
	      when  true, cls would try to get exact file modification time even if it means more
	      requests to the server.

       cmd:csh-history (boolean)
	      enables csh-like history expansion.

       cmd:default-protocol (string)
	      The value is used when `open' is used with just host name without protocol. Default
	      is `ftp'.

       cmd:fail-exit (boolean)
	      if true, exit when an unconditional (without || and && at begin) command fails.

       cmd:interactive (tri-boolean)
	      when true, lftp acts interactively, handles terminal signals and outputs some extra
	      messages. Default is auto and depends on stdin being a terminal.

       cmd:long-running (seconds)
	      time of command execution, which is considered as `long' and a beep is done  before
	      next prompt. 0 means off.

       cmd:ls-default (string)
	      default ls argument

       cmd:move-background (boolean)
	      when  false,  lftp refuses to go to background when exiting. To force it, use `exit
	      bg'.

       cmd:move-background-detach (boolean)
	      when true (default), lftp detaches itself from the control terminal when moving  to
	      background,  it is possible to attach back using `attach' command; when false, lftp
	      tricks the shell to move lftp to background process group  and  continues  to  run,
	      then  fg	shell  command brings lftp back to foreground unless it has done all jobs
	      and terminated.

       cmd:prompt (string)
	      The prompt. lftp recognizes the following backslash-escaped special characters that
	      are decoded as follows:
	      \@     insert @ if current user is not default
	      \a     an ASCII bell character (07)
	      \e     an ASCII escape character (033)
	      \h     the hostname you are connected to
	      \n     newline
	      \s     the name of the client (lftp)
	      \S     current slot name
	      \u     the username of the user you are logged in as
	      \U     the URL of the remote site (e.g., ftp://g437.ub.gu.se/home/james/src/lftp)
	      \v     the version of lftp (e.g., 2.0.3)
	      \w     the current working directory at the remote site
	      \W     the base name of the current working directory at the remote site
	      \nnn   the character corresponding to the octal number nnn
	      \\     a backslash
	      \?     skips next character if previous substitution was empty.
	      \[     begin  a sequence of non-printing characters, which could be used to embed a
		     terminal control sequence into the prompt
	      \]     end a sequence of non-printing characters

       cmd:parallel (number)
	      Number of jobs run in parallel in non-interactive mode. For example,  this  may  be
	      useful  for scripts with multiple `get' commands. Note that setting this to a value
	      greater than 1 changes conditional execution behaviour, basically makes  it  incon-
	      sistent.

       cmd:queue-parallel (number)
	      Number of jobs run in parallel in a queue.

       cmd:remote-completion (boolean)
	      a boolean to control whether or not lftp uses remote completion. When true, Tab key
	      guesses if the word being completed should be a remote  file  name.  Meta-Tab  does
	      remote  completion  always.  So  you can force remote completion with Meta-Tab when
	      cmd:remote-completion is false or when the guess is wrong.

       cmd:save-cwd-history (boolean)
	      when true, lftp saves last CWD of each site to ~/.lftp/cwd_history, allowing to  do
	      ``cd -'' after lftp restart. Default is true.

       cmd:save-rl-history (boolean)
	      when  true,  lftp saves readline history to ~/.lftp/rl_history on exit.  Default is
	      true.

       cmd:show-status (booleam)
	      when false, lftp does not show status line on terminal. Default is true.

       cmd:set-term-status (boolean)
	      when true, lftp updates terminal status if supported (e.g. xterm). The closure  for
	      this setting is the terminal type from TERM environment variable.

       cmd:status-interval (timeinterval)
	      the time interval between status updates.

       cmd:stifle-rl-history (number)
	      the number of lines to keep in readline history.

       cmd:term-status (string)
	      the  format  string to use to display terminal status. The closure for this setting
	      is the terminal type from TERM  environment  variable.  Default  uses  ``tsl''  and
	      ``fsl'' termcap values.

	      The following escapes are supported:

		   \a	bell
		   \e	escape
		   \n	new line
		   \s	"lftp"
		   \v	lftp version
		   \T	the status string

       cmd:time-style (string)
	      This setting is the default value for cls --time-style option.

       cmd:trace (boolean)
	      when true, lftp prints the commands it executes (like sh -x).

       cmd:verify-host (boolean)
	      if  true, lftp resolves host name immediately in `open' command.	It is also possi-
	      ble to skip the check for a single `open' command if `&' is  given,  or  if  ^Z  is
	      pressed during the check.

       cmd:verify-path (boolean)
	      if  true,  lftp checks the path given in `cd' command.  It is also possible to skip
	      the check for a single `cd' command if `&' is given, or if ^Z is pressed during the
	      check.  Examples:
		   set cmd:verify-path/hftp://* false
		   cd directory &

       cmd:verify-path-cached (boolean)
	      When  false,  `cd' to a directory known from cache as existent will succeed immedi-
	      ately.  Otherwise the verification will depend on cmd:verify-path setting.

       color:use-color (tri-boolean)
	      when true, cls command and completion output colored  file  listings  according  to
	      color:dir-colors	setting.  When set to auto, colors are used when output is a ter-
	      minal.

       color:dir-colors (string)
	      file listing color description. By default the value of LS_COLORS environment vari-
	      able is used. See dircolors(1).

       dns:SRV-query (boolean)
	      query  for  SRV records and use them before gethostbyname. The SRV records are only
	      used if port is not explicitly specified. See RFC2052 for details.

       dns:cache-enable (boolean)
	      enable DNS cache. If it is off, lftp resolves host name each time it reconnects.

       dns:cache-expire (time interval)
	      time to live for DNS cache entries. It has format <number><unit>+, e.g.  1d12h30m5s
	      or just 36h. To disable expiration, set it to `inf' or `never'.

       dns:cache-size (number)
	      maximum number of DNS cache entries.

       dns:fatal-timeout (time interval)
	      limit  the  time	for DNS queries. If DNS server is unavailable too long, lftp will
	      fail to resolve a given host name. Set to `never' to disable.

       dns:order (list of protocol names)
	      sets the order of DNS queries. Default is ``inet6 inet'' which means first look  up
	      address  in  inet6  family, then inet and use them in that order.  To disable inet6
	      (AAAA) lookup, set this variable to ``inet''.

       dns:use-fork (boolean)
	      if true, lftp will fork before resolving host address. Default is true.

       dns:max-retries (number)
	      If zero, there is no limit on the number of  times  lftp	will  try  to  lookup  an
	      address.	 If > 0, lftp will try only this number of times to look up an address of
	      each address family in dns:order.

       file:charset (string)
	      local character set. It is set from current locale initially.

       fish:charset (string)
	      the character set used by fish server  in  requests,  replies  and  file	listings.
	      Default is empty which means the same as local.

       fish:connect-program (string)
	      the  program  to use for connecting to remote server. It should support `-l' option
	      for user name, `-p' for port number. Default is `ssh -a -x'.  You  can  set  it  to
	      `rsh', for example.

       fish:shell (string)
	      use  specified  shell  on server side. Default is /bin/sh. On some systems, /bin/sh
	      exits when doing cd to a non-existent directory. lftp can handle that but it has to
	      reconnect. Set it to /bin/bash for such systems if bash is installed.

       ftp:acct (string)
	      Send  this  string in ACCT command after login. The result is ignored.  The closure
	      for this setting has format user@host.

       ftp:anon-pass (string)
	      sets the password  used  for  anonymous  FTP  access  authentication.   Default  is
	      "lftp@".

       ftp:anon-user (string)
	      sets  the  user  name  used  for	anonymous  FTP access authentication.  Default is
	      "anonymous".

       ftp:auto-sync-mode (regex)
	      if first server message matches this regex, turn on sync mode for that host.

       ftp:charset (string)
	      the character set used by FTP  server  in  requests,  replies  and  file	listings.
	      Default  is empty which means the same as local. This setting is only used when the
	      server does not support UTF8.

       ftp:client (string)
	      the name of FTP client to send with CLNT command, if supported by server.  If it is
	      empty, then no CLNT command will be sent.

       ftp:bind-data-socket (boolean)
	      bind data socket to the interface of control connection (in passive mode).  Default
	      is true, exception is the loopback interface.

       ftp:fix-pasv-address (boolean)
	      if true, lftp will try to correct address returned by server for	PASV  command  in
	      case  when  server  address is in public network and PASV returns an address from a
	      private network. In this case lftp would substitute server address instead  of  the
	      one returned by PASV command, port number would not be changed.  Default is true.

       ftp:fxp-passive-source (boolean)
	      if true, lftp will try to set up source FTP server in passive mode first, otherwise
	      destination one. If first attempt fails, lftp tries to set them up the  other  way.
	      If  the  other  disposition  fails  too,	lftp  falls  back to plain copy. See also
	      ftp:use-fxp.

       ftp:home (string)
	      Initial directory. Default is empty string which means auto. Set this to `/' if you
	      don't  like  the	look  of %2F in FTP URLs. The closure for this setting has format
	      user@host.

       ftp:ignore-pasv-address (boolean)
	      If true, lftp uses control connection address instead of the one returned  in  PASV
	      reply for data connection. This can be useful for broken NATs.  Default is false.

       ftp:list-empty-ok (boolean)
	      if  set  to  false, empty lists from LIST command will be treated as incorrect, and
	      another method (NLST) will be used.

       ftp:list-options (string)
	      sets options which are always appended to LIST command. It can  be  useful  to  set
	      this  to	`-a'  if  server does not show dot (hidden) files by default.  Default is
	      empty.

       ftp:nop-interval (seconds)
	      delay between NOOP commands when downloading tail of a file. This is useful for FTP
	      servers  which  send  "Transfer complete" message before flushing data transfer. In
	      such cases NOOP commands can prevent connection timeout.

       ftp:passive-mode (boolean)
	      sets passive FTP mode. This can be useful if you are behind a firewall  or  a  dumb
	      masquerading  router.  In passive mode lftp uses PASV command, not the PORT command
	      which is used in active mode. In passive mode lftp itself makes the data connection
	      to  the  server; in active mode the server connects to lftp for data transfer. Pas-
	      sive mode is the default.

       ftp:port-ipv4 (ipv4 address)
	      specifies an IPv4 address to send with PORT command. Default is empty  which  means
	      to send the address of local end of control connection.

       ftp:port-range (from-to)
	      allowed port range for active mode.  Format is min-max, or `full' or `any' to indi-
	      cate any port. Default is `full'.

       ftp:prefer-epsv (boolean)
	      use EPSV as preferred passive mode. Default is `false'.

       ftp:proxy (URL)
	      specifies FTP proxy to use.  To disable proxy set this to empty string.  Note  that
	      it  is  a  FTP  proxy  which uses FTP protocol, not FTP over HTTP. Default value is
	      taken from environment variable ftp_proxy if it starts with ``ftp://''. If your FTP
	      proxy  requires  authentication,	specify  user  name  and password in the URL.  If
	      ftp:proxy starts with http:// then hftp protocol (FTP  over  HTTP  proxy)  is  used
	      instead of FTP automatically.

       ftp:proxy-auth-type (string)
	      When set to ``joined'', lftp sends ``user@proxy_user@ftp.example.org'' as user name
	      to proxy, and ``password@proxy_password'' as password.

	      When set to ``joined-acct'', lftp sends ``user@ftp.example.org  proxy_user''  (with
	      space)  as  user	name  to  proxy. The site password is sent as usual and the proxy
	      password is expected in the following ACCT command.

	      When set to ``open'', lftp first sends proxy  user  and  proxy  password	and  then
	      ``OPEN ftp.example.org'' followed by ``USER user''.  The site password is then sent
	      as usual.

	      When set to ``user'' (default), lftp first sends proxy user and proxy password  and
	      then  ``user@ftp.example.org''  as  user	name.	The site password is then sent as
	      usual.

	      When set to  ``proxy-user@host'',  lftp  first  sends  ``USER  proxy_user@ftp.exam-
	      ple.org'', then proxy password. The site user and password are then sent as usual.

       ftp:rest-list (boolean)
	      allow  usage  of	REST  command before LIST command. This might be useful for large
	      directories, but some FTP servers silently ignore REST before LIST.

       ftp:rest-stor (boolean)
	      if false, lftp will not try to use REST before STOR. This can be	useful	for  some
	      buggy  servers which corrupt (fill with zeros) the file if REST followed by STOR is
	      used.

       ftp:retry-530 (regex)
	      Retry on server reply 530 for PASS command if text matches this regular expression.
	      This  setting  should be useful to distinguish between overloaded server (temporary
	      condition) and incorrect password (permanent condition).

       ftp:retry-530-anonymous (regex)
	      Additional regular expression for anonymous login, like ftp:retry-530.

       ftp:site-group (string)
	      Send this string in SITE GROUP command after login. The  result  is  ignored.   The
	      closure for this setting has format user@host.

       ftp:skey-allow (boolean)
	      allow sending skey/opie reply if server appears to support it. On by default.

       ftp:skey-force (boolean)
	      do  not  send  plain  text  password  over  the  network, use skey/opie instead. If
	      skey/opie is not available, assume failed login. Off by default.

       ftp:ssl-allow (boolean)
	      if true, try to negotiate SSL connection with FTP server for non-anonymous  access.
	      Default  is  true.  This and other SSL settings are only available if lftp was com-
	      piled with an ssl/tls library.

       ftp:ssl-data-use-keys (boolean)
	      if true, lftp loads ssl:key-file for protected data connection too. When false,  it
	      does  not,  and  the  server  can match data and control connections by session ID.
	      Default is true.

       ftp:ssl-force (boolean)
	      if true, refuse to send password	in  clear  when  server  does  not  support  SSL.
	      Default is false.

       ftp:ssl-protect-data (boolean)
	      if  true, request SSL connection for data transfers. This is cpu-intensive but pro-
	      vides privacy. Default is false.

       ftp:ssl-protect-fxp (boolean)
	      if true, request SSL connection for data transfer between two FTP  servers  in  FXP
	      mode.  CPSV  or SSCN command will be used in that case. If SSL connection fails for
	      some reason, lftp would try unprotected FXP transfer unless  ftp:ssl-force  is  set
	      for any of the two servers. Default is false.

       ftp:ssl-protect-list (boolean)
	      if true, request SSL connection for file list transfers. Default is true.

       ftp:ssl-use-ccc (boolean)
	      if  true,  lftp  would  issue  CCC command after logon, thus disable ssl protection
	      layer on control connection.

       ftp:stat-interval (time interval)
	      interval between STAT commands. Default is 1 second.

       ftp:sync-mode (boolean)
	      if true, lftp will send one command at a time and wait for response. This might  be
	      useful  if you are using a buggy FTP server or router. When it is off, lftp sends a
	      pack of commands and waits for responses - it speeds up operation when  round  trip
	      time  is significant.  Unfortunately it does not work with all FTP servers and some
	      routers have troubles with it, so it is on by default.

       ftp:timezone (string)
	      Assume this timezone for time in listings returned by LIST command.   This  setting
	      can  be  GMT  offset [+|-]HH[:MM[:SS]] or any valid TZ value (e.g. Europe/Moscow or
	      MSK-3MSD,M3.5.0,M10.5.0/3). The default is GMT.  Set it to an empty value to assume
	      local timezone specified by environment variable TZ.

       ftp:trust-feat (string)
	      When true, assume that FEAT returned data are correct and don't use common protocol
	      extensions like SIZE, MDTM, REST if they are not listed.	Default is false.

       ftp:use-abor (boolean)
	      if false, lftp does not send ABOR command but closes data connection immediately.

       ftp:use-allo (boolean)
	      when true (default), lftp sends ALLO command before uploading a file.

       ftp:use-feat (boolean)
	      when true (default), lftp uses FEAT command to determine extended features  of  ftp
	      server.

       ftp:use-fxp (boolean)
	      if true, lftp will try to set up direct connection between two ftp servers.

       ftp:use-hftp (boolean)
	      when  ftp:proxy  points  to  an  http proxy, this setting selects hftp method (GET,
	      HEAD) when true, and CONNECT method when false. Default is true.

       ftp:use-ip-tos (boolean)
	      when true, lftp uses IPTOS_LOWDELAY for control connection and IPTOS_THROUGHPUT for
	      data connections.

       ftp:lang (boolean)
	      the  language  selected  with  LANG  command,  if  supported  as	indicated by FEAT
	      response. Default is empty which means server default.

       ftp:use-mdtm (boolean)
	      when true (default), lftp uses MDTM command to determine file modification time.

       ftp:use-mdtm-overloaded (boolean)
	      when true, lftp uses two argument MDTM command to set  file  modification  time  on
	      uploaded files. Default is false.

       ftp:use-site-idle (boolean)
	      when true, lftp sends `SITE IDLE' command with net:idle argument. Default is false.

       ftp:use-site-utime (boolean)
	      when true, lftp sends 5-argument `SITE UTIME' command to set file modification time
	      on uploaded files. Default is true.

       ftp:use-site-utime2 (boolean)
	      when true, lftp sends 2-argument `SITE UTIME' command to set file modification time
	      on  uploaded  files.  Default is true.  If 5-argument `SITE UTIME' is also enabled,
	      2-argument command is tried first.

       ftp:use-size (boolean)
	      when true (default), lftp uses SIZE command to determine file size.

       ftp:use-stat (boolean)
	      if true, lftp sends STAT command in FXP mode transfer to know  how  much	data  has
	      been transferred. See also ftp:stat-interval. Default is true.

       ftp:use-stat-for-list (boolean)
	      when  true,  lftp uses STAT instead of LIST command. By default `.' is used as STAT
	      argument. Using STAT, lftp avoids creating data connection for  directory  listing.
	      Some servers require special options for STAT, use ftp:list-options to specify them
	      (e.g. -la).

       ftp:use-telnet-iac (boolean)
	      when true (default), lftp uses TELNET IAC command and follows  TELNET  protocol  as
	      specified  in  RFC959. When false, it does not follow TELNET protocol and thus does
	      not double 255 (0xFF, 0377) character and does not prefix ABOR  and  STAT  commands
	      with TELNET IP+SYNCH signal.

       ftp:use-tvfs (tri-boolean)
	      When  set  to  auto,  usage of TVFS feature depends on FEAT server reply. Otherwise
	      this setting tells whether use it or not. In short, if a server supports TVFS  fea-
	      ture then it uses unix-like paths.

       ftp:use-quit (boolean)
	      if true, lftp sends QUIT before disconnecting from ftp server. Default is true.

       ftp:verify-address (boolean)
	      verify  that  data  connection comes from the network address of control connection
	      peer. This can possibly prevent data connection spoofing which  can  lead  to  data
	      corruption.  Unfortunately, this can fail for certain ftp servers with several net-
	      work interfaces, when they do not set outgoing address on data  socket,  so  it  is
	      disabled by default.

       ftp:verify-port (boolean)
	      verify  that  data  connection  has port 20 (ftp-data) on its remote end.  This can
	      possibly prevent data connection spoofing by users of remote  host.  Unfortunately,
	      too  many  windows and even unix ftp servers forget to set proper port on data con-
	      nection, thus this check is off by default.

       ftp:web-mode (boolean)
	      disconnect after closing data connection. This can be useful for totally broken ftp
	      servers. Default is false.

       ftps:initial-prot (string)
	      specifies  initial PROT setting for FTPS connections. Should be one of: C, S, E, P,
	      or empty. Default is empty which means unknown, so that lftp will use PROT  command
	      unconditionally. If PROT command turns out to be unsupported, then Clear mode would
	      be assumed.

       hftp:cache (boolean)
	      allow server/proxy side caching for ftp-over-http protocol.

       hftp:cache-control (string)
	      specify corresponding HTTP request header.

       hftp:proxy (URL)
	      specifies HTTP proxy for FTP-over-HTTP protocol (hftp). The  protocol  hftp  cannot
	      work  without  a	HTTP  proxy,  obviously.  Default value is taken from environment
	      variable ftp_proxy if it starts with ``http://'', otherwise from environment  vari-
	      able  http_proxy.  If your FTP proxy requires authentication, specify user name and
	      password in the URL.

       hftp:use-allprop (boolean)
	      if true, lftp will send `<allprop/>' request body in `PROPFIND' requests, otherwise
	      it will send an empty request body.

       hftp:use-authorization (boolean)
	      if  set  to  off,  lftp will send password as part of URL to the proxy. This may be
	      required for some proxies (e.g. M-soft). Default is on, and lftp will send password
	      as part of Authorization header.

       hftp:use-head (boolean)
	      if  set  to  off,  lftp  will try to use `GET' instead of `HEAD' for hftp protocol.
	      While this is slower, it may allow lftp to  work	with  some  proxies  which  don't
	      understand or mishandle ``HEAD ftp://'' requests.

       hftp:use-mkcol (boolean)
	      if  set to off, lftp will try to use `PUT' instead of `MKCOL' to create directories
	      with hftp protocol. Default is off.

       hftp:use-propfind (boolean)
	      if set to off, lftp will not try to use `PROPFIND' to get directory  contents  with
	      hftp protocol and use `GET' instead. Default is off.

       hftp:use-type (boolean)
	      If  set  to  off,  lftp won't try to append `;type=' to URLs passed to proxy.  Some
	      broken proxies don't handle it correctly. Default is on.

       http:accept, http:accept-charset, http:accept-language (string)
	      specify corresponding HTTP request headers.

       http:authorization (string)
	      the authorization to use by default, when no  user  is  specified.  The  format  is
	      ``user:password''. Default is empty which means no authorization.

       http:cache (boolean)
	      allow server/proxy side caching.

       http:cache-control (string)
	      specify corresponding HTTP request header.

       http:cookie (string)
	      send this cookie to server. A closure is useful here:
		   set cookie/www.somehost.com "param=value"

       http:post-content-type (string)
	      specifies  value	of  Content-Type HTTP request header for POST method.  Default is
	      ``application/x-www-form-urlencoded''.

       http:proxy (URL)
	      specifies HTTP proxy. It is used when lftp works over HTTP protocol.  Default value
	      is  taken from environment variable http_proxy.  If your proxy requires authentica-
	      tion, specify user name and password in the URL.

       http:put-method (PUT or POST)
	      specifies which HTTP method to use on put.

       http:put-content-type (string)
	      specifies value of Content-Type HTTP request header for PUT method.

       http:referer (string)
	      specifies value for Referer HTTP request header. Single dot `.' expands to  current
	      directory URL. Default is `.'. Set to empty string to disable Referer header.

       http:set-cookies (boolean)
	      if true, lftp modifies http:cookie variables when Set-Cookie header is received.

       http:use-allprop (boolean)
	      if true, lftp will send `<allprop/>' request body in `PROPFIND' requests, otherwise
	      it will send an empty request body.

       http:use-mkcol (boolean)
	      if set to off, lftp will try to use `PUT' instead of `MKCOL' to create  directories
	      with HTTP protocol. Default is on.

       http:use-propfind (boolean)
	      if  set  to off, lftp will not try to use `PROPFIND' to get directory contents with
	      HTTP protocol and use `GET' instead. Default is on.

       http:user-agent (string)
	      the string lftp sends in User-Agent header of HTTP request.

       https:proxy (string)
	      specifies  https	proxy.	Default  value	is  taken   from   environment	 variable
	      https_proxy.

       mirror:dereference (boolean)
	      when  true, mirror will dereference symbolic links by default.  You can override it
	      by --no-dereference option. Default if false.

       mirror:exclude-regex (regex)
	      specifies default exclusion pattern. You can override it by --include option.

       mirror:include-regex (regex)
	      specifies default inclusion pattern. It is used just after mirror:exclude-regex  is
	      applied. It is never used if mirror:exclude-regex is empty.

       mirror:no-empty-dirs (boolean)
	      when true, mirror doesn't create empty directories (like --no-empty-dirs option).

       mirror:order (list of patterns)
	      specifies  order of file transfers. E.g. setting this to "*.sfv *.sum" makes mirror
	      to transfer files matching *.sfv first, then ones matching *.sum and then all other
	      files. To process directories after other files, add "*/" to end of pattern list.

       mirror:parallel-directories (boolean)
	      if true, mirror will start processing of several directories in parallel when it is
	      in parallel mode. Otherwise, it will transfer files from a single directory  before
	      moving to other directories.

       mirror:parallel-transfer-count (number)
	      specifies  number  of  parallel transfers mirror is allowed to start. Default is 1.
	      You can override it with --parallel option.

       mirror:set-permissions (boolean)
	      When set to off, mirror won't try to copy file and directory permissions.  You  can
	      override it by --perms option. Default is on.

       mirror:skip-noaccess (boolean)
	      when  true,  mirror does not try to download files which are obviously unaccessible
	      by the permission mask. Defaule is false.

       mirror:use-pget-n (number)
	      specifies -n option for pget command used to transfer every single file under  mir-
	      ror. Default is 1 which disables pget.

       module:path (string)
	      colon  separated	list  of  directories  to look for modules. Can be initialized by
	      environment variable LFTP_MODULE_PATH. Default is `PKGLIBDIR/VERSION:PKGLIBDIR'.

       net:connection-limit (number)
	      maximum number of concurrent connections to the same site. 0 means unlimited.

       net:connection-takeover (boolean)
	      if true, foreground connections have priority over background ones and  can  inter-
	      rupt background transfers to complete a foreground operation.

       net:idle (time interval)
	      disconnect from server after this idle time. Default is 3 minutes.

       net:limit-rate (bytes per second)
	      limit transfer rate on data connection. 0 means unlimited. You can specify two num-
	      bers separated by colon to limit download and upload rate separately.  Suffixes are
	      supported, e.g. 100K means 102400.

       net:limit-max (bytes)
	      limit accumulating of unused limit-rate. 0 means twice of limit-rate.

       net:limit-total-rate (bytes per second)
	      limit  transfer  rate of all connections in sum. 0 means unlimited. You can specify
	      two numbers separated by colon to limit download and upload rate separately.   Note
	      that  sockets  have  receive  buffers  on  them, this can lead to network link load
	      higher than this rate limit just after transfer  beginning.  You	can  try  to  set
	      net:socket-buffer to relatively small value to avoid this.

       net:limit-total-max (bytes)
	      limit accumulating of unused limit-total-rate. 0 means twice of limit-total-rate.

       net:max-retries (number)
	      the  maximum  number  of sequential tries of an operation without success.  0 means
	      unlimited. 1 means no retries.

       net:no-proxy (string)
	      contains comma separated list of domains	for  which  proxy  should  not	be  used.
	      Default is taken from environment variable no_proxy.

       net:persist-retries (number)
	      ignore this number of hard errors. Useful to login to buggy FTP servers which reply
	      5xx when there is too many users.

       net:reconnect-interval-base (seconds)
	      sets  the  base  minimal	time  between  reconnects.  Actual  interval  depends  on
	      net:reconnect-interval-multiplier and number of attempts to perform an operation.

       net:reconnect-interval-max (seconds)
	      sets  maximum  reconnect	interval.  When  current interval after multiplication by
	      net:reconnect-interval-multiplier reaches this value (or exceeds it), it	is  reset
	      back to net:reconnect-interval-base.

       net:reconnect-interval-multiplier (real number)
	      sets  multiplier by which base interval is multiplied each time new attempt to per-
	      form an operation fails. When the interval reaches maximum, it  is  reset  to  base
	      value. See net:reconnect-interval-base and net:reconnect-interval-max.

       net:socket-bind-ipv4 (ipv4 address)
	      bind all IPv4 sockets to specified address. This can be useful to select a specific
	      network interface to use. Default is empty which means not to  bind  IPv4  sockets,
	      operating system will choose an address automatically using routing table.

       net:socket-bind-ipv6 (ipv6 address)
	      the same for IPv6 sockets.

       net:socket-buffer (bytes)
	      use given size for SO_SNDBUF and SO_RCVBUF socket options. 0 means system default.

       net:socket-maxseg (bytes)
	      use given size for TCP_MAXSEG socket option. Not all operating systems support this
	      option, but Linux does.

       net:timeout (time interval)
	      sets the network protocol timeout.

       pget:default-n (number)
	      default number of chunks to split the file to in pget.

       pget:save-status (time interval)
	      save pget transfer status this often. Set to `never' to disable saving of the  sta-
	      tus file.  The status is saved to a file with suffix .lftp-pget-status.

       sftp:charset (string)
	      the  character set used by SFTP server in file names and file listings.  Default is
	      empty which means the same as local. This setting is only used  for  SFTP  protocol
	      version prior to 4. Version 4 and later always use UTF-8.

       sftp:connect-program (string)
	      the  program  to use for connecting to remote server. It should support `-l' option
	      for user name, `-p' for port number. Default is `ssh -a -x'.  You  can  set  it  to
	      `rsh', for example.

       sftp:max-packets-in-flight (number)
	      The  maximum  number of unreplied packets in flight. If round trip time is signifi-
	      cant, you should increase this and size-read/size-write. Default is 16.

       sftp:protocol-version (number)
	      The protocol number to negotiate. Default is 4. The actual  protocol  version  used
	      depends on server.

       sftp:server-program (string)
	      The  server program implementing SFTP protocol. If it does not contain a slash `/',
	      it is considered a ssh2 subsystem and -s option is used when starting  connect-pro-
	      gram.  Default is `sftp'. You can use rsh as transport level protocol like this:
		   set sftp:connect-program rsh
		   set sftp:server-program /usr/libexec/openssh/sftp-server
	      Similarly you can run SFTP over SSH1.

       sftp:size-read (number)
	      Block size for reading. Default is 0x8000.

       sftp:size-write (number)
	      Block size for writing. Default is 0x8000.

       ssl:ca-file (path to file)
	      use specified file as Certificate Authority certificate.

       ssl:ca-path (path to directory)
	      use  specified  directory  as Certificate Authority certificate repository (OpenSSL
	      only).

       ssl:check-hostname (boolean)
	      when true, lftp checks if the host name used to connect to the  server  corresponds
	      to the host name in its certificate.

       ssl:crl-file (path to file)
	      use specified file as Certificate Revocation List certificate.

       ssl:crl-path (path to directory)
	      use  specified  directory  as  Certificate  Revocation  List certificate repository
	      (OpenSSL only).

       ssl:key-file (path to file)
	      use specified file as your private key.

       ssl:cert-file (path to file)
	      use specified file as your certificate.

       ssl:use-sni (boolean)
	      when true, use Server Name Indication (SNI) TLS extension.

       ssl:verify-certificate (boolean)
	      if set to yes, then verify server's certificate to be signed by a known Certificate
	      Authority and not be on Certificate Revocation List.

       torrent:ip (ipv4 address)
	      IP address to send to the tracker. Specify it if you are using an HTTP proxy.

       torrent:ipv6 (ipv6 address)
	      IPv6 address to send to the tracker. By default, first found global unicast address
	      is used.

       torrent:max-peers (number)
	      maximum number of peers for a torrent. Least used peers  are  removed  to  maintain
	      this limit.

       torrent:port-range (from-to)
	      port  range  to  accept  connections  on.  A single port is selected when a torrent
	      starts.

       torrent:retracker (URL)
	      explicit retracker URL, e.g. `http://retracker.local/announce'.

       torrent:seed-max-time (time interval)
	      maximum seed time. After this period of time a complete torrent shuts down indepen-
	      dently of ratio. It can be set to infinity if needed.

       torrent:seed-min-peers (number)
	      minimum  number of peers when the torrent is complete. If there are less, new peers
	      are actively searched for.

       torrent:stop-on-ratio (real number)
	      torrent stops when it's complete and ratio reached this number.

       torrent:use-dht (boolean)
	      when true, DHT is used.

       xfer:clobber (boolean)
	      if this setting is off, get commands will not overwrite existing files and generate
	      an error instead.

       xfer:destination-directory (path or URL to directory)
	      This  setting  is  used as default -O option for get and mget commands.  Default is
	      empty, which means current directory (no -O option).

       xfer:disk-full-fatal (boolean)
	      when true, lftp aborts a transfer if it cannot write target file	because  of  full
	      disk or quota; when false, lftp waits for disk space to be freed.

       xfer:eta-period (seconds)
	      the period over which weighted average rate is calculated to produce ETA.

       xfer:eta-terse (boolean)
	      show terse ETA (only high order parts). Default is true.

       xfer:log (boolean)
	      when true, lftp logs transfers to a file from xfer:log-file setting.

       xfer:log-file (pathtofile)
	      the file to log transfers to. Default is ~/.lftp/transfer_log.

       xfer:make-backup (boolean)
	      when  true, lftp renames pre-existing file adding ``~'' suffix instead of overwrit-
	      ing it.

       xfer:max-redirections (number)
	      maximum number of redirections. This can be useful for downloading  over	HTTP.	0
	      prohibits redirections.

       xfer:rate-period (seconds)
	      the period over which weighted average rate is calculated to be shown.

       xfer:verify (boolean)
	      when  true,  verify-command  is launched after successful transfer to validate file
	      integrity. Zero exit code of that command should indicate correctness of the file.

       xfer:verify-command (string)
	      the command to validate file integrity. The only argument is the path to the file.

       The name of a variable can be abbreviated unless it becomes ambiguous. The  prefix  before
       `:' can be omitted too. You can set one variable several times for different closures, and
       thus you can get a particular settings for particular state. The closure is to  be  speci-
       fied after variable name separated with slash `/'.

       The  closure  for  `dns:',  `net:', `ftp:', `http:', `hftp:' domain variables is currently
       just the host name as you specify it in the `open' command  (with  some	exceptions  where
       closure	is  meaningless, e.g. dns:cache-size).	For some `cmd:' domain variables the clo-
       sure is current URL without path.  For other variables it is not currently used. See exam-
       ples in the sample lftp.conf.

       Certain commands and settings take a time interval parameter. It has the format Nx[Nx...],
       where N is time amount (floating point) and x is time unit: d - days, h - hours, m -  min-
       utes,  s  - seconds. Default unit is second. E.g. 5h30m or 5.5h.  Also the interval can be
       `infinity', `inf', `never', `forever' - it means infinite interval. E.g.  `sleep  forever'
       or `set dns:cache-expire never'.

       Boolean	settings  can  be one of (true, on, yes, 1, +) for a True value or one of (false,
       off, no, 0, -) for a False value.

       Tri-boolean settings have either a boolean value or `auto'.

       Integer settings can have a suffix: k - kibi, m - mebi, g - gigi, etc.  They can also have
       a prefix: 0 - octal, 0x - hexadecimal.

   FTP asynchronous mode (pipelining)
       Lftp can speed up FTP operations by sending several commands at once and then checking all
       the responses. See ftp:sync-mode variable. Sometimes this does not work, thus  synchronous
       mode is the default. You can try to turn synchronous mode off and see if it works for you.
       It is known that some network software dealing with address translation works  incorrectly
       in the case of several FTP commands in one network packet.

       RFC959  says: ``The user-process sending another command before the completion reply would
       be in violation of protocol; but server-FTP  processes  should  queue  any  commands  that
       arrive while a preceding command is in progress''. Also, RFC1123 says: ``Implementers MUST
       NOT assume any correspondence between READ boundaries on the control  connection  and  the
       Telnet  EOL  sequences  (CR  LF).''  and  ``a  single READ from the control connection may
       include more than one FTP command''.

       So it must be safe to send several commands at once, which speeds up operation a  lot  and
       seems  to  work	with  all  Unix  and  VMS based ftp servers. Unfortunately, windows based
       servers often cannot handle several commands in one packet,  and  so  cannot  some  broken
       routers.

OPTIONS
       -d     Switch on debugging mode.

       -e commands
	      Execute given commands and don't exit.

       -p port
	      Use the given port to connect.

       -u user[,pass]
	      Use  the	given  username  and  password to connect. Remember to quote the password
	      properly in the shell.  Also note that it is not secure to specify the password  on
	      command  line,  use  ~/.netrc  file.  Alternatively you can use ssh-based protocols
	      with authorized keys, so you don't have to enter a password.

       -f script_file
	      Execute commands in the file and exit.  This option  must  be  used  alone  without
	      other arguments.

       -c commands
	      Execute  the  given  commands and exit. Commands can be separated with a semicolon,
	      `&&' or `||'. Remember to quote the commands argument properly in the shell.   This
	      option must be used alone without other arguments.

ENVIRONMENT VARIABLES
       The following environment variables are processed by lftp:

       HOME   Used for (local) tilde (`~') expansion

       SHELL  Used by the ! command to determine the shell to run.

       PAGER  This  should be the name of the pager to use.  It's used by the more and zmore com-
	      mands.

       http_proxy, https_proxy
	      Used to set initial http:proxy, hftp:proxy and https:proxy variables.

       ftp_proxy
	      Used to set initial ftp:proxy or hftp:proxy variables, depending	on  URL  protocol
	      used in this environment variable.

       no_proxy
	      Used to set initial net:no-proxy variable.

       LFTP_MODULE_PATH
	      Used to set initial module:path variable.

       LFTP_HOME
	      Used  to	locate	the  directory that stores user-specific configuration files.  If
	      unset, ~/.lftp will be used.

       LS_COLORS
	      used to set initial color:dir-colors variable.

       XDG_CONFIG_DIR, XDG_DATA_DIR, XDG_CACHE_DIR
	      Used to locate the directories for user-specific files when ~/.lftp (or  $LFTP_HOME
	      directory)  does	not  exist.  Defaults  are ~/.config, ~/.local/share and ~/.cache
	      respectively. The suffix /lftp is appended to make the full path	to  the  directo-
	      ries.

FILES
       /etc/lftp.conf
	      system-wide startup file. Actual location depends on --sysconfdir configure option.
	      It is /etc when prefix is /usr, /usr/local/etc by default.

       ~/.lftp/rc, ~/.lftprc
	      These files are executed on lftp startup after /etc/lftp.conf.

       ~/.lftp/log
	      The file things are logged to when lftp moves into the background in nohup mode.

       ~/.lftp/transfer_log
	      The file transfers are logged to when xfer:log setting is set to `yes'.  The  loca-
	      tion can be changed by xfer:log-file setting.

       ~/.lftp/bookmarks
	      The file is used to store lftp's bookmarks.  See the bookmark command.

       ~/.lftp/cwd_history
	      The file is used to store last working directories for each site visited.

       ~/.lftp/bg/
	      The directory is used to store named sockets for backgrounded lftp processes.

       ~/.lftp/DHT/"
	      The directory is used to store DHT id and nodes cache for IPv4 and IPv6.	File name
	      suffix is the host name.

       ~/.netrc
	      The file is consulted to get default login and password to FTP  server.	Passwords
	      are also searched here if an URL with user name but with no password is used.

SEE ALSO
       ftpd(8), ftp(1)
       RFC854 (telnet), RFC959 (ftp), RFC1123, RFC1945 (http/1.0), RFC2052 (SRV RR), RFC2228 (ftp
       security extensions), RFC2389 (ftp FEAT), RFC2428 (ftp/ipv6),  RFC2518  (WebDAV),  RFC2616
       (http/1.1), RFC2617 (http/1.1 authentication), RFC2640 (ftp i18n), RFC4217 (ftp over ssl),
       BEP0003 (BitTorrent Protocol), BEP0005 (DHT Protocol), BEP0006 (Fast  Extension),  BEP0007
       (IPv6  Tracker  Extension),  BEP0009 (Extension for Peers to Send Metadata Files), BEP0010
       (Extension Protocol), BEP0012 (Multitracker Metadata Extension), BEP0023 (Tracker  Returns
       Compact Peer Lists), BEP0032 (DHT Extensions for IPv6).
       http://www.ietf.org/internet-drafts/draft-ietf-ftpext-mlst-16.txt (ftp extensions over
       RFC959),
       http://www.ietf.org/internet-drafts/draft-ietf-secsh-filexfer-10.txt (sftp).
       http://wiki.theory.org/BitTorrentSpecification
       http://www.bittornado.com/docs/multitracker-spec.txt
       http://www.rasterbar.com/products/libtorrent/dht_sec.html (DHT security extension)
       http://xbtt.sourceforge.net/udp_tracker_protocol.html (UDP tracker)

AUTHOR
       Alexander V. Lukyanov
       lav@yars.free.net

ACKNOWLEDGMENTS
       This manual page was originally written by Christoph  Lameter  <clameter@debian.org>,  for
       the Debian GNU/Linux system. The page was improved and updated later by Nicolas Lichtmaier
       <nick@Feedback.com.ar>, James Troup <J.J.Troup@comp.brad.ac.uk> and Alexander V.  Lukyanov
       <lav@yars.free.net>.

					   12 Apr 2013					  lftp(1)
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