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CentOS 7.0 - man page for tftp (centos section 1)

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TFTP(1) 				  User's Manual 				  TFTP(1)

NAME
       tftp - IPv4 Trivial File Transfer Protocol client

SYNOPSIS
       tftp [ options... ] [host [port]] [-c command]

DESCRIPTION
       tftp  is  a  client  for the Trivial file Transfer Protocol, which can be used to transfer
       files to and from remote machines, including some  very	minimalistic,  usually	embedded,
       systems.   The  remote  host may be specified on the command line, in which case tftp uses
       host as the default host for future transfers (see the connect command below.)

OPTIONS
       -4     Connect with IPv4 only, even if IPv6 support was compiled in.

       -6     Connect with IPv6 only, if compiled in.

       -c command
	      Execute command as if it had been entered on the tftp prompt.   Must  be	specified
	      last on the command line.

       -l     Default to literal mode. Used to avoid special processing of ':' in a file name.

       -m mode
	      Set the default transfer mode to mode.  This is usually used with -c.

       -R port:port
	      Force the originating port number to be in the specified range of port numbers.

       -v     Default to verbose mode.

       -V     Print  the  version  number  and configuration to standard output, then exit grace-
	      fully.

COMMANDS
       Once tftp is running, it issues the prompt tftp> and recognizes the following commands:

       ? command-name...

       help command-name...
	      Print help information

       ascii  Shorthand for mode ascii.

       binary Shorthand for mode binary.

       connect host [port]
	      Set the host (and optionally port) for transfers.  Note  that  the  TFTP	protocol,
	      unlike the FTP protocol, does not maintain connections between transfers; thus, the
	      connect command does not actually create a connection, but  merely  remembers  what
	      host  is to be used for transfers.  You do not have to use the connect command; the
	      remote host can be specified as part of the get or put commands.

       get file
       get remotefile localfile
       get file1 file2 file3...
	      Get a file or set of files from the specified sources.  A remote filename can be in
	      one of two forms: a plain filename on the remote host, if the host has already been
	      specified, or a string of the form host:filename to specify both a host  and  file-
	      name  at	the  same  time.  If the latter form is used, the last hostname specified
	      becomes the default for future transfers.  Enable literal mode to  prevent  special
	      treatment of the ':' character (e.g. C:\dir\file).

       literal
	      Toggle  literal  mode.   When  set,  this mode prevents special treatment of ':' in
	      filenames.

       mode transfer-mode
	      Specify the mode for transfers; transfer-mode may be one of ascii (or netascii)  or
	      binary (or octet.)  The default is ascii.

       put file
       put localfile remotefile
       put file1 file2 file3... remote-directory
	      Put a file or set of files to the specified remote file or directory.  The destina-
	      tion can be in one of two forms: a filename on the remote host,  if  the	host  has
	      already  been  specified,  or  a string of the form host:filename to specify both a
	      host and filename at the same time.  If the latter form is used, the hostname spec-
	      ified  becomes  the  default for future transfers.  If the remote-directory form is
	      used, the remote host is assumed to be a UNIX system or another system using  /  as
	      directory  separator.   Enable literal mode to prevent special treatment of the ':'
	      character (e.g. C:\dir\file).

       quit   Exit tftp.  End-of-file will also exit.

       rexmt retransmission-timeout
	      Set the per-packet retransmission timeout, in seconds.

       status Show current status.

       timeout total-transmission-timeout
	      Set the total transmission timeout, in seconds.

       trace  Toggle packet tracing (a debugging feature.)

       verbose
	      Toggle verbose mode.

NOTES
       The TFTP protocol provides no provisions for authentication or security.   Therefore,  the
       remote  server  will  probably  implement some kinds of access restriction or firewalling.
       These access restrictions are likely to be site- and server-specific.

AUTHOR
       This version of tftp is maintained by H. Peter  Anvin  <hpa@zytor.com>.	 It  was  derived
       from,  but  has substantially diverged from, an OpenBSD source base, with added patches by
       Markus Gutschke and Gero Kulhman.

SEE ALSO
       tftpd(8).

tftp-hpa 5.2				   23 July 2008 				  TFTP(1)
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