tftp - trivial file transfer program
tftp [ host ]
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 spec-
ified on the command line, in which case tftp uses host as the default host for future
transfers (see the connect command below).
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 the TFTP protocol,
unlike the FTP protocol, does not maintain connections betweeen 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.
Set the mode for transfers; transfer-mode may be one of ascii or binary. The
default is ascii.
put localfile remotefile
put file1 file2 ... fileN 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 machine.
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 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.
quit Exit tftp. An end of file also exits.
Toggle verbose mode.
trace Toggle packet tracing.
status Show current status.
Set the per-packet retransmission timeout, in seconds.
Set the total transmission timeout, in seconds.
ascii Shorthand for "mode ascii"
binary Shorthand for "mode binary"
? [ command-name ... ]
Print help information.
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.
4.3 Berkeley Distribution 1Q TFTP(1)