noble (1) tftp.1.gz

Provided by: tftp-hpa_5.2+20150808-1.4build1_amd64 bug

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 gracefully.

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 filename 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 destination 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 specified 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).