TFTP(1) BSD General Commands Manual TFTP(1)

NAME
     ttffttpp - trivial file transfer program

SYNOPSIS
     ttffttpp [-ee] [host] [port]

DESCRIPTION
     ttffttpp is the user interface to the Internet TFTP (Trivial File Transfer
     Protocol), which allows users to transfer files to and from a remote
     machine.  The remote host (and optional port) may be specified on the
     command line, in which case ttffttpp uses host (and port) as the default for
     future transfers (see the ccoonnnneecctt command below).

     The optional -ee argument sets a binary transfer mode as well as setting
     the extended options as if ttoouutt, ttssiizzee, and bbllkkssiizzee 6655446644, had been
     given.

CCOOMMMMAANNDDSS
     Once ttffttpp is running, it issues the prompt `tftp>' and recognizes the
     following commands:

     ?? command-name ...
              Print help information.

     aasscciiii    Shorthand for "mode ascii"

     bbiinnaarryy   Shorthand for "mode binary"

     bbllkkssiizzee blk-size
              Set the tftp blksize option to blk-size octets (8-bit bytes).
              Since the number of blocks in a tftp ggeett or ppuutt is 65535, the
              default block size of 512 bytes only allows a maximum of just
              under 32 megabytes to be transferred.  The value given for
              blk-size must be between 8 and 65464, inclusive.  Note that many
              servers will not respect this option.

     ccoonnnneecctt host-name [port]
              Set the host (and optionally port) for transfers.  Note that the
              TFTP protocol, unlike the FTP protocol, does not maintain con-
              nections between transfers; thus, the ccoonnnneecctt 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 ccoonnnneecctt
              command; the remote host can be specified as part of the ggeett or
              ppuutt commands.

     ggeett filename
     ggeett remotename localname
     ggeett file1 file2 ... fileN
              Get a file or set of files from the specified sources.  Source
              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
              hosts: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.

     mmooddee transfer-mode
              Set the mode for transfers; transfer-mode may be one of ascii or
              binary.  The default is ascii.

     ppuutt file
     ppuutt localfile remotefile
     ppuutt file1 file2 ... fileN 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 file-
              name on the remote host, if the host has already been specified,
              or a string of the form hosts: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 machine.  If you need to specify IPv6 numeric address
              to hosts, wrap them using square bracket like [hosts]:filename
              to disambiguate the colon.

     qquuiitt     Exit ttffttpp.  An end of file also exits.

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

     ssttaattuuss   Show current status.

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

     ttoouutt     Toggle the tftp "timeout" option.  If enabled, the client will
              pass its retransmission-timeout to the server.  Note that many
              servers will not respect this option.

     ttrraaccee    Toggle packet tracing.

     ttssiizzee    Toggle the tftp "tsize" option.  If enabled, the client will
              pass and request the filesize of a file at the beginning of a
              file transfer.  Note that many servers will not respect this
              option.

     vveerrbboossee  Toggle verbose mode.

HISTORY     The ttffttpp command appeared in 4.3BSD.  IPv6 support was implemented by
     WIDE/KAME project in 1999.  TFTP options were implemented by Wasabi Sys-
     tems, Inc., in 2003, and first appeared in NetBSD 2.0.

SSEECCUURRIITTYY CCOONNSSIIDDEERRAATTIIOONNSS
     Because there is no user-login or validation within the TFTP protocol,
     the remote site will probably have some sort of file-access restrictions
     in place.  The exact methods are specific to each site and therefore dif-
     ficult to document here.

BSD                              June 11, 2003                             BSD