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 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.
get filename
get remotename localname
get file1 file2 ... fileN
Get a file or set of files from the specified
sourcesSource
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.