tftp(1)

NAME

     tftp --- trivial file transfer program

SYNOPSIS

     tftp [host]

DESCRIPTION

     Tftp 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 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).

COMMANDS

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

     ? command-name ...
          Print help information.

     ascii    Shorthand for "mode ascii"

     binary   Shorthand for "mode binary"

     connect host-name [port]
          Set the host (and optionally port) for transfers.  Note that the
          TFTP protocol, unlike the FTP protocol, does not maintain
          connections betwen 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 filename
     get remotename localname
     get 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.

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

     put file
     put localfile remotefile
     put 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
          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 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.

     quit     Exit tftp.  An end of file also exits.

     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.

     verbose  Toggle verbose mode.

BUGS

     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
     difficult to document here.

HISTORY

     The tftp command appeared in 4.3BSD.

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