tftp(1)                                                            User Commands                                                           tftp(1)

NAME

       tftp - trivial file transfer program

SYNOPSIS

       tftp [ host [port]]

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 and optional port may be specified on the command line, in which case tftp uses host as the default host,  and  if
       specified, port as the default port, for future transfers. See the connect command below.

USAGE

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

   Commands
       connect host-name [ port ]

           Set  the  host,  and  optionally port, for transfers. 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 may be one of ascii or binary. The default is ascii.

       put filename
       put localfile remotefile
       put filename1 filename2 ... filenameN remote-directory

            Transfer  a file, or a 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 specified host becomes  the  default  for  future
           transfers. If the remote-directory form is used, the remote host is assumed to be running the UNIX system.

           The  host  can  be  a  host name (see hosts(4) or ipnodes(4)) or an IPv4 or IPv6 address string (see inet(7P) or inet6(7P)). Since IPv6
           addresses already contain ":"s, the host should be enclosed in square brackets when an IPv6  address  is  used.  Otherwise,  the  first
           occurrence of a colon will be interpreted as the separator between the host and the filename. For example,

           [1080::8:800:200c:417A]:myfile

           Files may be written only if they already exist and are publicly writable. See in.tftpd(1M).

       get filename
       get remotename localname
       get filename1 filename2 filename3 ... filenameN

            Get  a  file  or  set of files (three or more) from the specified remote 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  host  specified  becomes  the  default  for
           future transfers. See the put command regarding specifying a host.

       quit

           Exit tftp. An EOF 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.

       blksize transfer-blocksize

           The value of the transfer blocksize option to negotiate with the server. A value of 0 disables the negotiation of this option.

       srexmt server-retransmission-timeout

           The value of the retransmission timeout option to request that the server uses. A value of 0 disables the negotiation of this option.

       tsize

           A  toggle  that  sends the transfer size option to the server. By default, the option is not sent. The transfer size option is not sent
           with a write request when the transfer-mode is ascii.

       ? [  command-name ... ]

           Print help information.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE         |      ATTRIBUTE VALUE        |
       +-----------------------------+-----------------------------+
       |Availability                 |SUNWtftp                     |
       +-----------------------------+-----------------------------+

SEE ALSO

       in.tftpd(1M), hosts(4), ipnodes(4),attributes(5),inet(7P), inet6(7P)

       Malkin, G. and Harkin, A. RFC 2347, TFTP Option Extension. The Internet Society. May 1998

       Malkin, G. and Harkin, A. RFC 2348, TFTP Blocksize Option. The Internet Society. May 1998

       Malkin, G. and Harkin, A. RFC 2349, TFTP Timeout Interval and Transfer Size Options. The Internet Society. May 1998

       Sollins, K.R. RFC 1350, The TFTP Protocol (Revision 2).  Network Working Group. July 1992.

NOTES

       The default transfer-mode is ascii. This differs from pre-SunOS 4.0 and pre-4.3BSD systems, so explicit action must be taken when transfer-
       ring non-ASCII binary files such as executable commands.

       Because  there  is  no  user-login or validation within the TFTP protocol, many remote sites restrict file access in various ways. Approved
       methods for file access are specific to each site, and therefore cannot be documented here.

       When using the get command to transfer multiple files from a remote host, three or more files must be specified.  If two files  are  speci-
       fied, the second file is used as a local file.

SunOS 5.10                                                          2 Jan 2002                                                             tftp(1)