×
UNIX.COM Login
Username:
Password:  
Show Password






👤


BSD 2.11 - man page for rdist (bsd section 1)

Linux & Unix Commands - Search Man Pages
Man Page or Keyword Search:
man
Select Man Page Set:
apropos Keyword Search (sections above)


RDIST(1)										 RDIST(1)

NAME
       rdist - remote file distribution program

SYNOPSIS
       rdist [ -nqbRhivwy ] [ -f distfile ] [ -d var=value ] [ -m host ] [ name ... ]

       rdist [ -nqbRhivwy ] -c name ... [login@]host[:dest]

DESCRIPTION
       Rdist  is  a  program  to maintain identical copies of files over multiple hosts.  It pre-
       serves the owner, group, mode, and mtime of files if possible and can update programs that
       are  executing.	Rdist reads commands from distfile to direct the updating of files and/or
       directories.  If distfile is `-', the standard input is used.  If no -f option is present,
       the  program looks first for `distfile', then `Distfile' to use as the input.  If no names
       are specified on the command line, rdist will update all  of  the  files  and  directories
       listed  in  distfile.   Otherwise,  the	argument  is taken to be the name of a file to be
       updated or the label of a command to execute. If label and  file  names	conflict,  it  is
       assumed to be a label.  These may be used together to update specific files using specific
       commands.

       The -c option forces rdist to interpret the remaining arguments as a small distfile.   The
       equivalent distfile is as follows.

	    ( name ... ) -> [login@]host
		 install   [dest] ;

       Other options:

       -d     Define  var  to  have  value.  The -d option is used to define or override variable
	      definitions in the distfile.  Value can be the empty string, one name, or a list of
	      names surrounded by parentheses and separated by tabs and/or spaces.

       -m     Limit which machines are to be updated. Multiple -m arguments can be given to limit
	      updates to a subset of the hosts listed the distfile.

       -n     Print the commands without executing them. This option is useful for debugging dis-
	      tfile.

       -q     Quiet  mode. Files that are being modified are normally printed on standard output.
	      The -q option suppresses this.

       -R     Remove extraneous files. If a directory is being updated, any files that	exist  on
	      the  remote  host  that  do not exist in the master directory are removed.  This is
	      useful for maintaining truely identical copies of directories.

       -h     Follow symbolic links. Copy the file that the link points to rather than	the  link
	      itself.

       -i     Ignore unresolved links.	Rdist will normally try to maintain the link structure of
	      files being transfered and warn the user if all the links cannot be found.

       -v     Verify that the files are up to date on all the hosts. Any files that  are  out  of
	      date will be displayed but no files will be changed nor any mail sent.

       -w     Whole mode. The whole file name is appended to the destination directory name. Nor-
	      mally, only the last component of a name is used when renaming  files.   This  will
	      preserve	the  directory	structure of the files being copied instead of flattening
	      the directory structure. For example, renaming a list of files such  as  (  dir1/f1
	      dir2/f2  )  to  dir3  would  create  files dir3/dir1/f1 and dir3/dir2/f2 instead of
	      dir3/f1 and dir3/f2.

       -y     Younger mode. Files are normally updated if their mtime and size (see stat(2)) dis-
	      agree.  The  -y  option  causes rdist not to update files that are younger than the
	      master copy.  This can be used to prevent newer copies on other  hosts  from  being
	      replaced.   A  warning message is printed for files which are newer than the master
	      copy.

       -b     Binary comparison. Perform a binary comparison and  update  files  if  they  differ
	      rather than comparing dates and sizes.

       Distfile  contains a sequence of entries that specify the files to be copied, the destina-
       tion hosts, and what operations to perform to do the updating. Each entry has one  of  the
       following formats.

	    <variable name> `=' <name list>
	    [ label: ] <source list> `->' <destination list> <command list>
	    [ label: ] <source list> `::' <time_stamp file> <command list>

       The first format is used for defining variables.  The second format is used for distribut-
       ing files to other hosts.  The third format is used for making lists of	files  that  have
       been  changed  since  some  given  date.  The source list specifies a list of files and/or
       directories on the local host which are to be used as the master  copy  for  distribution.
       The  destination  list  is  the list of hosts to which these files are to be copied.  Each
       file in the source list is added to a list of changes if the file is out of  date  on  the
       host  which is being updated (second format) or the file is newer than the time stamp file
       (third format).

       Labels are optional. They are used to identify a command for partial updates.

       Newlines, tabs, and blanks are only used as separators and are otherwise ignored. Comments
       begin with `#' and end with a newline.

       Variables  to  be  expanded begin with `$' followed by one character or a name enclosed in
       curly braces (see the examples at the end).

       The source and destination lists have the following format:

	    <name>
       or
	    `(' <zero or more names separated by white-space> `)'

       The shell meta-characters `[', `]', `{', `}', `*', and `?'  are	recognized  and  expanded
       (on the local host only) in the same way as csh(1).  They can be escaped with a backslash.
       The `~' character is also expanded in the same way as csh but is  expanded  separately  on
       the  local and destination hosts.  When the -w option is used with a file name that begins
       with `~', everything except the home directory is appended to the destination name.   File
       names  which do not begin with `/' or `~' use the destination user's home directory as the
       root directory for the rest of the file name.

       The command list consists of zero or more commands of the following format.

	    `install'  <options>    opt_dest_name `;'
	    `notify'   <name list>  `;'
	    `except'   <name list>  `;'
	    `except_pat'	    <pattern list>`;'
	    `special'  <name list>  string `;'

       The install command is used to copy out of date files  and/or  directories.   Each  source
       file  is  copied to each host in the destination list.  Directories are recursively copied
       in the same way.  Opt_dest_name is an optional parameter to rename files.  If  no  install
       command	appears  in the command list or the destination name is not specified, the source
       file name is used.  Directories in the path name will be created if they do not	exist  on
       the  remote  host.  To help prevent disasters, a non-empty directory on a target host will
       never be replaced with a regular file or a symbolic link.  However, under the `-R'  option
       a  non-empty  directory will be removed if the corresponding filename is completely absent
       on the master host.  The options are `-R', `-h', `-i', `-v', `-w', `-y', and `-b' and have
       the  same  semantics as options on the command line except they only apply to the files in
       the source list.  The login name used on the destination host is the  same  as  the  local
       host unless the destination name is of the format ``login@host".

       The notify command is used to mail the list of files updated (and any errors that may have
       occured) to the listed names.  If no `@' appears in the	name,  the  destination  host  is
       appended to the name (e.g., name1@host, name2@host, ...).

       The  except  command  is used to update all of the files in the source list except for the
       files listed in name list.  This is usually used to copy everything in a directory  except
       certain files.

       The  except_pat	command  is like the except command except that pattern list is a list of
       regular expressions (see ed(1) for details).  If one of the patterns matches  some  string
       within  a file name, that file will be ignored.	Note that since `\' is a quote character,
       it must be doubled to become part of the regular expression.  Variables	are  expanded  in
       pattern list but not shell file pattern matching characters.  To include a `$', it must be
       escaped with `\'.

       The special command is used to specify sh(1) commands that  are	to  be	executed  on  the
       remote  host  after  the  file  in name list is updated or installed.  If the name list is
       omitted then the shell commands will be executed for every file updated or installed.  The
       shell  variable	`FILE'	is  set  to the current filename before executing the commands in
       string.	String starts and ends with `"' and can cross multiple lines in distfile.  Multi-
       ple commands to the shell should be separated by `;'.  Commands are executed in the user's
       home directory on the host being updated.  The special command can be used to rebuild pri-
       vate databases, etc.  after a program has been updated.

       The following is a small example.

	    HOSTS = ( matisse root@arpa)

	    FILES = ( /bin /lib /usr/bin /usr/games
		       /usr/include/{*.h,{stand,sys,vax*,pascal,machine}/*.h}
		       /usr/lib /usr/man/man? /usr/ucb /usr/local/rdist )

	    EXLIB = ( Mail.rc aliases aliases.dir aliases.pag crontab dshrc
		       sendmail.cf sendmail.fc sendmail.hf sendmail.st uucp vfont )

	    ${FILES} -> ${HOSTS}
		       install -R ;
		       except /usr/lib/${EXLIB} ;
		       except /usr/games/lib ;
		       special /usr/sbin/sendmail "/usr/sbin/sendmail -bz" ;

	    srcs:
	    /usr/src/bin -> arpa
		       except_pat ( \\.o\$ /SCCS\$ ) ;

	    IMAGEN = (ips dviimp catdvi)

	    imagen:
	    /usr/local/${IMAGEN} -> arpa
		       install /usr/local/lib ;
		       notify ralph ;

	    ${FILES} :: stamp.cory
		       notify root@cory ;

FILES
       distfile       input command file
       /tmp/rdist*    temporary file for update lists

SEE ALSO
       sh(1), csh(1), stat(2)

DIAGNOSTICS
       A complaint about mismatch of rdist version numbers may really stem from some problem with
       starting your shell, e.g., you are in too many groups.

BUGS
       Source files must reside on the local host where rdist is executed.

       There is no easy way to have a special command executed after all  files  in  a	directory
       have been updated.

       Variable expansion only works for name lists; there should be a general macro facility.

       Rdist aborts on files which have a negative mtime (before Jan 1, 1970).

       There  should be a `force' option to allow replacement of non-empty directories by regular
       files or symlinks.  A means of updating file modes and owners of otherwise identical files
       is also needed.

4.3 Berkeley Distribution		 October 22, 1996				 RDIST(1)
Unix & Linux Commands & Man Pages : ©2000 - 2018 Unix and Linux Forums


All times are GMT -4. The time now is 03:47 PM.

Unix & Linux Forums Content Copyright©1993-2018. All Rights Reserved.