ftp(1)

Kerberos

ftp(1)

user user-name [ password ]

[ account ]

 

Log into the server host on the current connection, which must already be open. A

.netrc ®le in

the user's local home directory can provide the user-name, password, and optionally the account; see netrc(4). Otherwise ftp prompts the user for this information. In a secure environment based on Kerberos V5, ftp will not require a password. Instead, Kerberos authentication and authorization will be performed as described in sis(5). In all other environments, users are considered authenticated if they have a password and that password is correct, and authorized if an account exists for them on the remote system.

verbose

Toggle verbose output. If verbose output is enabled, ftp displays responses from the server host, and when a ®le transfer completes it reports statistics regarding the ef®ciency of the transfer.

?[ command ]

A synonym for the help command. Prints the help information for the speci®ed command.

Aborting A File Transfer

To abort a ®le transfer, use the terminal interrupt key (usually Ctrl-C). Sending transfers are halted immediately. ftp halts incoming (receive) transfers by ®rst sending a FTP protocol ABOR command to the remote server, then discarding any further received data. The speed at which this is accomplished depends upon the remote server's support for ABOR processing. If the remote server does not support the ABOR command, an ftp> prompt does not appear until the remote server completes sending the requested ®le.

The terminal interrupt key sequence is ignored while ftp awaits a reply from the remote server. A long delay in this mode may result from the ABOR processing described above, or from unexpected behavior by the remote server, including violations of the FTP protocol. If the delay results from unexpected remote server behavior, the local ftp program must be killed manually.

File Naming Conventions

Files speci®ed as arguments to ftp commands are processed according to the following rules.

∙If the ®le name - is speci®ed, ftp uses the standard input (for reading) or standard output (for writ- ing).

∙If the ®rst character of the ®le name is , ftp interprets the remainder of the argument as a shell command. ftp forks a shell, using popen() (see popen(3S)) with the supplied argument, and reads (writes) from standard output (standard input). If the shell command includes spaces, the argument must be quoted, as in:

" ls -lt"

Some useful examples of this mechanism are:

ls . " more"

The above command lists the ®les in the current directory page by page.

put " tail -20 loc_file" rem_file

This command copies the last twenty lines of the local ®le "loc_®le" to the remote system as "rem_®le".

∙Otherwise, if globbing is enabled, ftp expands local ®le names according to the rules used by the C shell (see csh(1)); see the glob command, below. If the ftp command expects a single local ®le (e.g. put), only the ®rst ®lename generated by the globbing operation is used.

∙For mget commands and get commands with unspeci®ed local ®le names, the local ®lename is named the same as the remote ®lename, which may be altered by a case, ntrans, or nmap setting. The resulting ®lename may then be altered if runique is on.

∙For mput commands and put commands with unspeci®ed remote ®le names, the remote ®lename is named the same as the local ®lename, which may be altered by a ntrans or nmap setting. The resulting ®lename may then be altered by the remote server if sunique is on.

WARNINGS

Correct execution of many commands depends upon proper behavior by the remote server.

f

HP-UX Release 11i: December 2000

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Section 1−307