tftp(1C) —

NAME

tftp − Trivial File Transfer Protocol program

SYNOPSIS

tftp [ host ]

DESCRIPTION

tftp is the user interface to the Internet Trivial File Transfer Protocol (TFTP), 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 tftp> and recognizes the following commands:

connect host-name [ port ]
Set the host (and optionally port) for transfers. Note that TFTP, unlike FTP, 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.

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 file name 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 host name specified becomes the default for future transfers. If the remote-directory form is used, the remote host is assumed to be a UNIX System machine.

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 file name 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 host name specified becomes the default for future transfers.

quit Exit tftp. An end-of-file also exits.

verbose
Toggle verbose mode.

trace Toggle packet tracing.

status
Show current status.

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

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

ascii Shorthand for mode ascii.

binary
Shorthand for mode binary.

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

BUGS

Because there is no user-login or validation within TFTP, 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.