NAME
tftp — trivial file transfer program
DESCRIPTION
tftp
is the user interface to the Internet
TFTP
(Trivial File Transfer Protocol),
that allows users to transfer files to and from a remote machine.
The remote
host
can 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 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.
- mode transfer-mode
Set the mode for transfers;
transfer-mode
can be one of
ascii
or
binary
(default is
ascii).
- put file
- put localfile remotefile
- put file1 file2 ... fileN remotedirectory
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-like
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 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.
Typing the end-of-file character also causes an exit.
- 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.
WARNINGS
Since there is no user-login or validation within the
TFTP
protocol, the remote site probably has some sort
of file-access restrictions in place.
The exact methods are specific to each site and are therefore
difficult to document here.
AUTHOR
tftp
was developed by the University of California, Berkeley.
