1155 lines
29 KiB
Groff
1155 lines
29 KiB
Groff
.\" Copyright (c) 1985, 1989, 1990, 1993
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.\" The Regents of the University of California. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the University of
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.\" California, Berkeley and its contributors.
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.\" 4. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)ftp.1 8.2 (Berkeley) 12/30/93
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.\"
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.Dd December 30, 1993
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.Dt FTP 1
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.Os BSD 4.2
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.Sh NAME
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.Nm ftp
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.Nd
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.Tn ARPANET
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file transfer program
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.Sh SYNOPSIS
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.Nm ftp
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.Op Fl v
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.Op Fl d
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.Op Fl i
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.Op Fl n
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.Op Fl U
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.Op Fl p
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.Op Fl g
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.Op Ar host
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.Sh DESCRIPTION
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.Nm Ftp
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is the user interface to the
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.Tn ARPANET
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standard File Transfer Protocol.
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The program allows a user to transfer files to and from a
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remote network site.
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.Pp
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Options may be specified at the command line, or to the
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command interpreter.
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.Bl -tag -width flag
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.It Fl v
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Verbose option forces
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.Nm ftp
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to show all responses from the remote server, as well
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as report on data transfer statistics.
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.It Fl n
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Restrains
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.Nm ftp
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from attempting \*(Lqauto-login\*(Rq upon initial connection.
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If auto-login is enabled,
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.Nm ftp
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will check the
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.Pa .netrc
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(see below) file in the user's home directory for an entry describing
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an account on the remote machine.
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If no entry exists,
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.Nm ftp
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will prompt for the remote machine login name (default is the user
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identity on the local machine), and, if necessary, prompt for a password
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and an account with which to login.
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.It Fl i
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Turns off interactive prompting during
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multiple file transfers.
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.It Fl d
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Enables debugging.
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.It Fl g
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Disables file name globbing.
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.It Fl U
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Disable data port range restrictions.
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.It Fl p
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Enable passive mode operation for use behind connection filtering firewalls.
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.El
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.Pp
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The client host with which
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.Nm ftp
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is to communicate may be specified on the command line.
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If this is done,
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.Nm ftp
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will immediately attempt to establish a connection to an
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.Tn FTP
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server on that host; otherwise,
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.Nm ftp
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will enter its command interpreter and await instructions
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from the user.
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When
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.Nm ftp
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is awaiting commands from the user the prompt
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.Ql ftp>
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is provided to the user.
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The following commands are recognized
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by
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.Nm ftp :
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.Bl -tag -width Fl
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.It Ic \&! Op Ar command Op Ar args
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Invoke an interactive shell on the local machine.
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If there are arguments, the first is taken to be a command to execute
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directly, with the rest of the arguments as its arguments.
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.It Ic \&$ Ar macro-name Op Ar args
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Execute the macro
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.Ar macro-name
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that was defined with the
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.Ic macdef
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command.
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Arguments are passed to the macro unglobbed.
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.It Ic account Op Ar passwd
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Supply a supplemental password required by a remote system for access
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to resources once a login has been successfully completed.
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If no argument is included, the user will be prompted for an account
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password in a non-echoing input mode.
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.It Ic append Ar local-file Op Ar remote-file
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Append a local file to a file on the remote machine.
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If
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.Ar remote-file
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is left unspecified, the local file name is used in naming the
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remote file after being altered by any
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.Ic ntrans
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or
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.Ic nmap
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setting.
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File transfer uses the current settings for
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.Ic type ,
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.Ic format ,
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.Ic mode ,
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and
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.Ic structure .
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.It Ic ascii
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Set the file transfer
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.Ic type
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to network
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.Tn ASCII .
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This is the default type.
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.It Ic bell
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Arrange that a bell be sounded after each file transfer
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command is completed.
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.It Ic binary
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Set the file transfer
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.Ic type
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to support binary image transfer.
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.It Ic bye
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Terminate the
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.Tn FTP
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session with the remote server
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and exit
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.Nm ftp .
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An end of file will also terminate the session and exit.
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.It Ic case
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Toggle remote computer file name case mapping during
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.Ic mget
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commands.
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When
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.Ic case
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is on (default is off), remote computer file names with all letters in
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upper case are written in the local directory with the letters mapped
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to lower case.
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.It Ic \&cd Ar remote-directory
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Change the working directory on the remote machine
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to
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.Ar remote-directory .
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.It Ic cdup
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Change the remote machine working directory to the parent of the
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current remote machine working directory.
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.It Ic chmod Ar mode file-name
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Change the permission modes of the file
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.Ar file-name
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on the remote
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system to
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.Ar mode .
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.It Ic close
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Terminate the
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.Tn FTP
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session with the remote server, and
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return to the command interpreter.
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Any defined macros are erased.
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.It Ic \&cr
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Toggle carriage return stripping during
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ascii type file retrieval.
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Records are denoted by a carriage return/linefeed sequence
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during ascii type file transfer.
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When
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.Ic \&cr
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is on (the default), carriage returns are stripped from this
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sequence to conform with the
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.Ux
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single linefeed record
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delimiter.
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Records on
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.Pf non\- Ns Ux
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remote systems may contain single linefeeds;
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when an ascii type transfer is made, these linefeeds may be
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distinguished from a record delimiter only when
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.Ic \&cr
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is off.
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.It Ic delete Ar remote-file
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Delete the file
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.Ar remote-file
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on the remote machine.
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.It Ic debug Op Ar debug-value
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Toggle debugging mode.
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If an optional
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.Ar debug-value
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is specified it is used to set the debugging level.
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When debugging is on,
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.Nm ftp
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prints each command sent to the remote machine, preceded
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by the string
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.Ql \-\->
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.It Xo
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.Ic dir
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.Op Ar remote-directory
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.Op Ar local-file
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.Xc
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Print a listing of the directory contents in the
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directory,
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.Ar remote-directory ,
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and, optionally, placing the output in
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.Ar local-file .
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If interactive prompting is on,
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.Nm ftp
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will prompt the user to verify that the last argument is indeed the
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target local file for receiving
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.Ic dir
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output.
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If no directory is specified, the current working
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directory on the remote machine is used.
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If no local
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file is specified, or
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.Ar local-file
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is
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.Fl ,
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output comes to the terminal.
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.It Ic disconnect
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A synonym for
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.Ar close .
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.It Ic form Ar format
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Set the file transfer
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.Ic form
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to
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.Ar format .
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The default format is \*(Lqfile\*(Rq.
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.It Ic get Ar remote-file Op Ar local-file
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Retrieve the
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.Ar remote-file
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and store it on the local machine.
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If the local
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file name is not specified, it is given the same
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name it has on the remote machine, subject to
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alteration by the current
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.Ic case ,
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.Ic ntrans ,
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and
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.Ic nmap
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settings.
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The current settings for
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.Ic type ,
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.Ic form ,
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.Ic mode ,
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and
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.Ic structure
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are used while transferring the file.
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.It Ic glob
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Toggle filename expansion for
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.Ic mdelete ,
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.Ic mget
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and
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.Ic mput .
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If globbing is turned off with
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.Ic glob ,
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the file name arguments
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are taken literally and not expanded.
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Globbing for
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.Ic mput
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is done as in
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.Xr csh 1 .
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For
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.Ic mdelete
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and
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.Ic mget ,
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each remote file name is expanded
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separately on the remote machine and the lists are not merged.
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Expansion of a directory name is likely to be
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different from expansion of the name of an ordinary file:
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the exact result depends on the foreign operating system and ftp server,
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and can be previewed by doing
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.Ql mls remote-files \-
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Note:
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.Ic mget
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and
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.Ic mput
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are not meant to transfer
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entire directory subtrees of files.
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That can be done by
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transferring a
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.Xr tar 1
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archive of the subtree (in binary mode).
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.It Ic hash
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Toggle hash-sign (``#'') printing for each data block
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transferred.
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The size of a data block is 1024 bytes.
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.It Ic help Op Ar command
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Print an informative message about the meaning of
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.Ar command .
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If no argument is given,
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.Nm ftp
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prints a list of the known commands.
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.It Ic idle Op Ar seconds
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Set the inactivity timer on the remote server to
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.Ar seconds
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seconds.
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If
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.Ar seconds
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is omitted, the current inactivity timer is printed.
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.It Ic lcd Op Ar directory
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Change the working directory on the local machine.
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If
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no
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.Ar directory
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is specified, the user's home directory is used.
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.It Xo
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.Ic \&ls
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.Op Ar remote-directory
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.Op Ar local-file
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.Xc
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Print a listing of the contents of a
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directory on the remote machine.
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The listing includes any system-dependent information that the server
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chooses to include; for example, most
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.Ux
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systems will produce
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output from the command
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.Ql ls \-l .
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(See also
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.Ic nlist . )
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If
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.Ar remote-directory
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is left unspecified, the current working directory is used.
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If interactive prompting is on,
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.Nm ftp
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will prompt the user to verify that the last argument is indeed the
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target local file for receiving
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.Ic \&ls
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output.
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If no local file is specified, or if
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.Ar local-file
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is
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.Sq Fl ,
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the output is sent to the terminal.
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.It Ic macdefNs Ar macro-name
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Define a macro.
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Subsequent lines are stored as the macro
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.Ar macro-name ;
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a null line (consecutive newline characters
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in a file or
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carriage returns from the terminal) terminates macro input mode.
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There is a limit of 16 macros and 4096 total characters in all
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defined macros.
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Macros remain defined until a
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.Ic close
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command is executed.
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The macro processor interprets `$' and `\e' as special characters.
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A `$' followed by a number (or numbers) is replaced by the
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corresponding argument on the macro invocation command line.
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A `$' followed by an `i' signals that macro processor that the
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executing macro is to be looped.
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On the first pass `$i' is
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replaced by the first argument on the macro invocation command line,
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on the second pass it is replaced by the second argument, and so on.
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A `\e' followed by any character is replaced by that character.
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Use the `\e' to prevent special treatment of the `$'.
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.It Ic mdelete Op Ar remote-files
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Delete the
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.Ar remote-files
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on the remote machine.
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.It Ic mdir Ar remote-files local-file
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Like
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.Ic dir ,
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except multiple remote files may be specified.
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If interactive prompting is on,
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.Nm ftp
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will prompt the user to verify that the last argument is indeed the
|
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target local file for receiving
|
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.Ic mdir
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output.
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.It Ic mget Ar remote-files
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Expand the
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.Ar remote-files
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on the remote machine
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and do a
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.Ic get
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for each file name thus produced.
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See
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.Ic glob
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for details on the filename expansion.
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Resulting file names will then be processed according to
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.Ic case ,
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.Ic ntrans ,
|
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and
|
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.Ic nmap
|
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settings.
|
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Files are transferred into the local working directory,
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which can be changed with
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.Ql lcd directory ;
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new local directories can be created with
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.Ql "\&! mkdir directory" .
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.It Ic mkdir Ar directory-name
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Make a directory on the remote machine.
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.It Ic mls Ar remote-files local-file
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Like
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.Ic nlist ,
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except multiple remote files may be specified,
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and the
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.Ar local-file
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must be specified.
|
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If interactive prompting is on,
|
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.Nm ftp
|
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will prompt the user to verify that the last argument is indeed the
|
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target local file for receiving
|
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.Ic mls
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output.
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.It Ic mode Op Ar mode-name
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Set the file transfer
|
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.Ic mode
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to
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.Ar mode-name .
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The default mode is \*(Lqstream\*(Rq mode.
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.It Ic modtime Ar file-name
|
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Show the last modification time of the file on the remote machine.
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.It Ic mput Ar local-files
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Expand wild cards in the list of local files given as arguments
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and do a
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.Ic put
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for each file in the resulting list.
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|
See
|
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.Ic glob
|
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for details of filename expansion.
|
|
Resulting file names will then be processed according to
|
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.Ic ntrans
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and
|
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.Ic nmap
|
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settings.
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.It Ic newer Ar file-name
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Get the file only if the modification time of the remote file is more
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recent that the file on the current system.
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If the file does not
|
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exist on the current system, the remote file is considered
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.Ic newer .
|
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Otherwise, this command is identical to
|
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.Ar get .
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.It Xo
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.Ic nlist
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.Op Ar remote-directory
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.Op Ar local-file
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.Xc
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Print a list of the files in a
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|
directory on the remote machine.
|
|
If
|
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.Ar remote-directory
|
|
is left unspecified, the current working directory is used.
|
|
If interactive prompting is on,
|
|
.Nm ftp
|
|
will prompt the user to verify that the last argument is indeed the
|
|
target local file for receiving
|
|
.Ic nlist
|
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output.
|
|
If no local file is specified, or if
|
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.Ar local-file
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|
is
|
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.Fl ,
|
|
the output is sent to the terminal.
|
|
.It Ic nmap Op Ar inpattern outpattern
|
|
Set or unset the filename mapping mechanism.
|
|
If no arguments are specified, the filename mapping mechanism is unset.
|
|
If arguments are specified, remote filenames are mapped during
|
|
.Ic mput
|
|
commands and
|
|
.Ic put
|
|
commands issued without a specified remote target filename.
|
|
If arguments are specified, local filenames are mapped during
|
|
.Ic mget
|
|
commands and
|
|
.Ic get
|
|
commands issued without a specified local target filename.
|
|
This command is useful when connecting to a
|
|
.No non\- Ns Ux
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|
remote computer
|
|
with different file naming conventions or practices.
|
|
The mapping follows the pattern set by
|
|
.Ar inpattern
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|
and
|
|
.Ar outpattern .
|
|
.Op Ar Inpattern
|
|
is a template for incoming filenames (which may have already been
|
|
processed according to the
|
|
.Ic ntrans
|
|
and
|
|
.Ic case
|
|
settings).
|
|
Variable templating is accomplished by including the
|
|
sequences `$1', `$2', ..., `$9' in
|
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.Ar inpattern .
|
|
Use `\\' to prevent this special treatment of the `$' character.
|
|
All other characters are treated literally, and are used to determine the
|
|
.Ic nmap
|
|
.Op Ar inpattern
|
|
variable values.
|
|
For example, given
|
|
.Ar inpattern
|
|
$1.$2 and the remote file name "mydata.data", $1 would have the value
|
|
"mydata", and $2 would have the value "data".
|
|
The
|
|
.Ar outpattern
|
|
determines the resulting mapped filename.
|
|
The sequences `$1', `$2', ...., `$9' are replaced by any value resulting
|
|
from the
|
|
.Ar inpattern
|
|
template.
|
|
The sequence `$0' is replace by the original filename.
|
|
Additionally, the sequence
|
|
.Ql Op Ar seq1 , Ar seq2
|
|
is replaced by
|
|
.Op Ar seq1
|
|
if
|
|
.Ar seq1
|
|
is not a null string; otherwise it is replaced by
|
|
.Ar seq2 .
|
|
For example, the command
|
|
.Pp
|
|
.Bd -literal -offset indent -compact
|
|
nmap $1.$2.$3 [$1,$2].[$2,file]
|
|
.Ed
|
|
.Pp
|
|
would yield
|
|
the output filename "myfile.data" for input filenames "myfile.data" and
|
|
"myfile.data.old", "myfile.file" for the input filename "myfile", and
|
|
"myfile.myfile" for the input filename ".myfile".
|
|
Spaces may be included in
|
|
.Ar outpattern ,
|
|
as in the example: `nmap $1 sed "s/ *$//" > $1' .
|
|
Use the `\e' character to prevent special treatment
|
|
of the `$','[','[', and `,' characters.
|
|
.It Ic ntrans Op Ar inchars Op Ar outchars
|
|
Set or unset the filename character translation mechanism.
|
|
If no arguments are specified, the filename character
|
|
translation mechanism is unset.
|
|
If arguments are specified, characters in
|
|
remote filenames are translated during
|
|
.Ic mput
|
|
commands and
|
|
.Ic put
|
|
commands issued without a specified remote target filename.
|
|
If arguments are specified, characters in
|
|
local filenames are translated during
|
|
.Ic mget
|
|
commands and
|
|
.Ic get
|
|
commands issued without a specified local target filename.
|
|
This command is useful when connecting to a
|
|
.No non\- Ns Ux
|
|
remote computer
|
|
with different file naming conventions or practices.
|
|
Characters in a filename matching a character in
|
|
.Ar inchars
|
|
are replaced with the corresponding character in
|
|
.Ar outchars .
|
|
If the character's position in
|
|
.Ar inchars
|
|
is longer than the length of
|
|
.Ar outchars ,
|
|
the character is deleted from the file name.
|
|
.It Ic open Ar host Op Ar port
|
|
Establish a connection to the specified
|
|
.Ar host
|
|
.Tn FTP
|
|
server.
|
|
An optional port number may be supplied,
|
|
in which case,
|
|
.Nm ftp
|
|
will attempt to contact an
|
|
.Tn FTP
|
|
server at that port.
|
|
If the
|
|
.Ic auto-login
|
|
option is on (default),
|
|
.Nm ftp
|
|
will also attempt to automatically log the user in to
|
|
the
|
|
.Tn FTP
|
|
server (see below).
|
|
.It Ic prompt
|
|
Toggle interactive prompting.
|
|
Interactive prompting
|
|
occurs during multiple file transfers to allow the
|
|
user to selectively retrieve or store files.
|
|
If prompting is turned off (default is on), any
|
|
.Ic mget
|
|
or
|
|
.Ic mput
|
|
will transfer all files, and any
|
|
.Ic mdelete
|
|
will delete all files.
|
|
.It Ic proxy Ar ftp-command
|
|
Execute an ftp command on a secondary control connection.
|
|
This command allows simultaneous connection to two remote ftp
|
|
servers for transferring files between the two servers.
|
|
The first
|
|
.Ic proxy
|
|
command should be an
|
|
.Ic open ,
|
|
to establish the secondary control connection.
|
|
Enter the command "proxy ?" to see other ftp commands executable on the
|
|
secondary connection.
|
|
The following commands behave differently when prefaced by
|
|
.Ic proxy :
|
|
.Ic open
|
|
will not define new macros during the auto-login process,
|
|
.Ic close
|
|
will not erase existing macro definitions,
|
|
.Ic get
|
|
and
|
|
.Ic mget
|
|
transfer files from the host on the primary control connection
|
|
to the host on the secondary control connection, and
|
|
.Ic put ,
|
|
.Ic mput ,
|
|
and
|
|
.Ic append
|
|
transfer files from the host on the secondary control connection
|
|
to the host on the primary control connection.
|
|
Third party file transfers depend upon support of the ftp protocol
|
|
.Dv PASV
|
|
command by the server on the secondary control connection.
|
|
.It Ic put Ar local-file Op Ar remote-file
|
|
Store a local file on the remote machine.
|
|
If
|
|
.Ar remote-file
|
|
is left unspecified, the local file name is used
|
|
after processing according to any
|
|
.Ic ntrans
|
|
or
|
|
.Ic nmap
|
|
settings
|
|
in naming the remote file.
|
|
File transfer uses the
|
|
current settings for
|
|
.Ic type ,
|
|
.Ic format ,
|
|
.Ic mode ,
|
|
and
|
|
.Ic structure .
|
|
.It Ic pwd
|
|
Print the name of the current working directory on the remote
|
|
machine.
|
|
.It Ic quit
|
|
A synonym for
|
|
.Ic bye .
|
|
.It Ic quote Ar arg1 arg2 ...
|
|
The arguments specified are sent, verbatim, to the remote
|
|
.Tn FTP
|
|
server.
|
|
.It Ic recv Ar remote-file Op Ar local-file
|
|
A synonym for get.
|
|
.It Ic reget Ar remote-file Op Ar local-file
|
|
Reget acts like get, except that if
|
|
.Ar local-file
|
|
exists and is
|
|
smaller than
|
|
.Ar remote-file ,
|
|
.Ar local-file
|
|
is presumed to be
|
|
a partially transferred copy of
|
|
.Ar remote-file
|
|
and the transfer
|
|
is continued from the apparent point of failure.
|
|
This command
|
|
is useful when transferring very large files over networks that
|
|
are prone to dropping connections.
|
|
.It Ic remotehelp Op Ar command-name
|
|
Request help from the remote
|
|
.Tn FTP
|
|
server.
|
|
If a
|
|
.Ar command-name
|
|
is specified it is supplied to the server as well.
|
|
.It Ic remotestatus Op Ar file-name
|
|
With no arguments, show status of remote machine.
|
|
If
|
|
.Ar file-name
|
|
is specified, show status of
|
|
.Ar file-name
|
|
on remote machine.
|
|
.It Xo
|
|
.Ic rename
|
|
.Op Ar from
|
|
.Op Ar to
|
|
.Xc
|
|
Rename the file
|
|
.Ar from
|
|
on the remote machine, to the file
|
|
.Ar to .
|
|
.It Ic reset
|
|
Clear reply queue.
|
|
This command re-synchronizes command/reply sequencing with the remote
|
|
ftp server.
|
|
Resynchronization may be necessary following a violation of the ftp protocol
|
|
by the remote server.
|
|
.It Ic restart Ar marker
|
|
Restart the immediately following
|
|
.Ic get
|
|
or
|
|
.Ic put
|
|
at the
|
|
indicated
|
|
.Ar marker .
|
|
On
|
|
.Ux
|
|
systems, marker is usually a byte
|
|
offset into the file.
|
|
.It Ic restrict
|
|
Toggle data port range restrictions.
|
|
When not operating in passive mode, the
|
|
.Nm ftp ,
|
|
client program requests that the remote server open a connection back
|
|
to the client host on a separate data port. In previous versions, that
|
|
remote port fell in the range 1024..4999. However, most firewall setups
|
|
filter that range of TCP ports because other services reside there.
|
|
The default behavior now is for the client to request that the server
|
|
connect back to the client using the port range 40000..44999. Firewall
|
|
administrators can chose to allow TCP connections in that range, if they
|
|
deem it to not be a security risk.
|
|
.It Ic rmdir Ar directory-name
|
|
Delete a directory on the remote machine.
|
|
.It Ic runique
|
|
Toggle storing of files on the local system with unique filenames.
|
|
If a file already exists with a name equal to the target
|
|
local filename for a
|
|
.Ic get
|
|
or
|
|
.Ic mget
|
|
command, a ".1" is appended to the name.
|
|
If the resulting name matches another existing file,
|
|
a ".2" is appended to the original name.
|
|
If this process continues up to ".99", an error
|
|
message is printed, and the transfer does not take place.
|
|
The generated unique filename will be reported.
|
|
Note that
|
|
.Ic runique
|
|
will not affect local files generated from a shell command
|
|
(see below).
|
|
The default value is off.
|
|
.It Ic send Ar local-file Op Ar remote-file
|
|
A synonym for put.
|
|
.It Ic sendport
|
|
Toggle the use of
|
|
.Dv PORT
|
|
commands.
|
|
By default,
|
|
.Nm ftp
|
|
will attempt to use a
|
|
.Dv PORT
|
|
command when establishing
|
|
a connection for each data transfer.
|
|
The use of
|
|
.Dv PORT
|
|
commands can prevent delays
|
|
when performing multiple file transfers.
|
|
If the
|
|
.Dv PORT
|
|
command fails,
|
|
.Nm ftp
|
|
will use the default data port.
|
|
When the use of
|
|
.Dv PORT
|
|
commands is disabled, no attempt will be made to use
|
|
.Dv PORT
|
|
commands for each data transfer.
|
|
This is useful
|
|
for certain
|
|
.Tn FTP
|
|
implementations which do ignore
|
|
.Dv PORT
|
|
commands but, incorrectly, indicate they've been accepted.
|
|
.It Ic site Ar arg1 arg2 ...
|
|
The arguments specified are sent, verbatim, to the remote
|
|
.Tn FTP
|
|
server as a
|
|
.Dv SITE
|
|
command.
|
|
.It Ic size Ar file-name
|
|
Return size of
|
|
.Ar file-name
|
|
on remote machine.
|
|
.It Ic status
|
|
Show the current status of
|
|
.Nm ftp .
|
|
.It Ic struct Op Ar struct-name
|
|
Set the file transfer
|
|
.Ar structure
|
|
to
|
|
.Ar struct-name .
|
|
By default \*(Lqstream\*(Rq structure is used.
|
|
.It Ic sunique
|
|
Toggle storing of files on remote machine under unique file names.
|
|
Remote ftp server must support ftp protocol
|
|
.Dv STOU
|
|
command for
|
|
successful completion.
|
|
The remote server will report unique name.
|
|
Default value is off.
|
|
.It Ic system
|
|
Show the type of operating system running on the remote machine.
|
|
.It Ic tenex
|
|
Set the file transfer type to that needed to
|
|
talk to
|
|
.Tn TENEX
|
|
machines.
|
|
.It Ic trace
|
|
Toggle packet tracing.
|
|
.It Ic type Op Ar type-name
|
|
Set the file transfer
|
|
.Ic type
|
|
to
|
|
.Ar type-name .
|
|
If no type is specified, the current type
|
|
is printed.
|
|
The default type is network
|
|
.Tn ASCII .
|
|
.It Ic umask Op Ar newmask
|
|
Set the default umask on the remote server to
|
|
.Ar newmask .
|
|
If
|
|
.Ar newmask
|
|
is omitted, the current umask is printed.
|
|
.It Xo
|
|
.Ic user Ar user-name
|
|
.Op Ar password
|
|
.Op Ar account
|
|
.Xc
|
|
Identify yourself to the remote
|
|
.Tn FTP
|
|
server.
|
|
If the
|
|
.Ar password
|
|
is not specified and the server requires it,
|
|
.Nm ftp
|
|
will prompt the user for it (after disabling local echo).
|
|
If an
|
|
.Ar account
|
|
field is not specified, and the
|
|
.Tn FTP
|
|
server
|
|
requires it, the user will be prompted for it.
|
|
If an
|
|
.Ar account
|
|
field is specified, an account command will
|
|
be relayed to the remote server after the login sequence
|
|
is completed if the remote server did not require it
|
|
for logging in.
|
|
Unless
|
|
.Nm ftp
|
|
is invoked with \*(Lqauto-login\*(Rq disabled, this
|
|
process is done automatically on initial connection to
|
|
the
|
|
.Tn FTP
|
|
server.
|
|
.It Ic verbose
|
|
Toggle verbose mode.
|
|
In verbose mode, all responses from
|
|
the
|
|
.Tn FTP
|
|
server are displayed to the user.
|
|
In addition,
|
|
if verbose is on, when a file transfer completes, statistics
|
|
regarding the efficiency of the transfer are reported.
|
|
By default,
|
|
verbose is on.
|
|
.It Ic ? Op Ar command
|
|
A synonym for help.
|
|
.El
|
|
.Pp
|
|
Command arguments which have embedded spaces may be quoted with
|
|
quote `"' marks.
|
|
.Sh ABORTING A FILE TRANSFER
|
|
To abort a file transfer, use the terminal interrupt key
|
|
(usually Ctrl-C).
|
|
Sending transfers will be immediately halted.
|
|
Receiving transfers will be halted by sending a ftp protocol
|
|
.Dv ABOR
|
|
command to the remote server, and discarding any further data received.
|
|
The speed at which this is accomplished depends upon the remote
|
|
server's support for
|
|
.Dv ABOR
|
|
processing.
|
|
If the remote server does not support the
|
|
.Dv ABOR
|
|
command, an
|
|
.Ql ftp>
|
|
prompt will not appear until the remote server has completed
|
|
sending the requested file.
|
|
.Pp
|
|
The terminal interrupt key sequence will be ignored when
|
|
.Nm ftp
|
|
has completed any local processing and is awaiting 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
|
|
.Nm ftp
|
|
program must be killed by hand.
|
|
.Sh FILE NAMING CONVENTIONS
|
|
Files specified as arguments to
|
|
.Nm ftp
|
|
commands are processed according to the following rules.
|
|
.Bl -enum
|
|
.It
|
|
If the file name
|
|
.Sq Fl
|
|
is specified, the
|
|
.Ar stdin
|
|
(for reading) or
|
|
.Ar stdout
|
|
(for writing) is used.
|
|
.It
|
|
If the first character of the file name is
|
|
.Sq \&| ,
|
|
the
|
|
remainder of the argument is interpreted as a shell command.
|
|
.Nm Ftp
|
|
then forks a shell, using
|
|
.Xr popen 3
|
|
with the argument supplied, and reads (writes) from the stdout
|
|
(stdin).
|
|
If the shell command includes spaces, the argument
|
|
must be quoted; e.g.
|
|
\*(Lq" ls -lt"\*(Rq.
|
|
A particularly
|
|
useful example of this mechanism is: \*(Lqdir more\*(Rq.
|
|
.It
|
|
Failing the above checks, if ``globbing'' is enabled,
|
|
local file names are expanded
|
|
according to the rules used in the
|
|
.Xr csh 1 ;
|
|
c.f. the
|
|
.Ic glob
|
|
command.
|
|
If the
|
|
.Nm ftp
|
|
command expects a single local file (.e.g.
|
|
.Ic put ) ,
|
|
only the first filename generated by the "globbing" operation is used.
|
|
.It
|
|
For
|
|
.Ic mget
|
|
commands and
|
|
.Ic get
|
|
commands with unspecified local file names, the local filename is
|
|
the remote filename, which may be altered by a
|
|
.Ic case ,
|
|
.Ic ntrans ,
|
|
or
|
|
.Ic nmap
|
|
setting.
|
|
The resulting filename may then be altered if
|
|
.Ic runique
|
|
is on.
|
|
.It
|
|
For
|
|
.Ic mput
|
|
commands and
|
|
.Ic put
|
|
commands with unspecified remote file names, the remote filename is
|
|
the local filename, which may be altered by a
|
|
.Ic ntrans
|
|
or
|
|
.Ic nmap
|
|
setting.
|
|
The resulting filename may then be altered by the remote server if
|
|
.Ic sunique
|
|
is on.
|
|
.El
|
|
.Sh FILE TRANSFER PARAMETERS
|
|
The FTP specification specifies many parameters which may
|
|
affect a file transfer.
|
|
The
|
|
.Ic type
|
|
may be one of \*(Lqascii\*(Rq, \*(Lqimage\*(Rq (binary),
|
|
\*(Lqebcdic\*(Rq, and \*(Lqlocal byte size\*(Rq (for
|
|
.Tn PDP Ns -10's
|
|
and
|
|
.Tn PDP Ns -20's
|
|
mostly).
|
|
.Nm Ftp
|
|
supports the ascii and image types of file transfer,
|
|
plus local byte size 8 for
|
|
.Ic tenex
|
|
mode transfers.
|
|
.Pp
|
|
.Nm Ftp
|
|
supports only the default values for the remaining
|
|
file transfer parameters:
|
|
.Ic mode ,
|
|
.Ic form ,
|
|
and
|
|
.Ic struct .
|
|
.Sh THE .netrc FILE
|
|
The
|
|
.Pa .netrc
|
|
file contains login and initialization information
|
|
used by the auto-login process.
|
|
It resides in the user's home directory.
|
|
The following tokens are recognized; they may be separated by spaces,
|
|
tabs, or new-lines:
|
|
.Bl -tag -width password
|
|
.It Ic machine Ar name
|
|
Identify a remote machine
|
|
.Ar name .
|
|
The auto-login process searches the
|
|
.Pa .netrc
|
|
file for a
|
|
.Ic machine
|
|
token that matches the remote machine specified on the
|
|
.Nm ftp
|
|
command line or as an
|
|
.Ic open
|
|
command argument.
|
|
Once a match is made, the subsequent
|
|
.Pa .netrc
|
|
tokens are processed,
|
|
stopping when the end of file is reached or another
|
|
.Ic machine
|
|
or a
|
|
.Ic default
|
|
token is encountered.
|
|
.It Ic default
|
|
This is the same as
|
|
.Ic machine
|
|
.Ar name
|
|
except that
|
|
.Ic default
|
|
matches any name.
|
|
There can be only one
|
|
.Ic default
|
|
token, and it must be after all
|
|
.Ic machine
|
|
tokens.
|
|
This is normally used as:
|
|
.Pp
|
|
.Dl default login anonymous password user@site
|
|
.Pp
|
|
thereby giving the user
|
|
.Ar automatic
|
|
anonymous ftp login to
|
|
machines not specified in
|
|
.Pa .netrc .
|
|
This can be overridden
|
|
by using the
|
|
.Fl n
|
|
flag to disable auto-login.
|
|
.It Ic login Ar name
|
|
Identify a user on the remote machine.
|
|
If this token is present, the auto-login process will initiate
|
|
a login using the specified
|
|
.Ar name .
|
|
.It Ic password Ar string
|
|
Supply a password.
|
|
If this token is present, the auto-login process will supply the
|
|
specified string if the remote server requires a password as part
|
|
of the login process.
|
|
Note that if this token is present in the
|
|
.Pa .netrc
|
|
file for any user other
|
|
than
|
|
.Ar anonymous ,
|
|
.Nm ftp
|
|
will abort the auto-login process if the
|
|
.Pa .netrc
|
|
is readable by
|
|
anyone besides the user.
|
|
.It Ic account Ar string
|
|
Supply an additional account password.
|
|
If this token is present, the auto-login process will supply the
|
|
specified string if the remote server requires an additional
|
|
account password, or the auto-login process will initiate an
|
|
.Dv ACCT
|
|
command if it does not.
|
|
.It Ic macdef Ar name
|
|
Define a macro.
|
|
This token functions like the
|
|
.Nm ftp
|
|
.Ic macdef
|
|
command functions.
|
|
A macro is defined with the specified name; its contents begin with the
|
|
next
|
|
.Pa .netrc
|
|
line and continue until a null line (consecutive new-line
|
|
characters) is encountered.
|
|
If a macro named
|
|
.Ic init
|
|
is defined, it is automatically executed as the last step in the
|
|
auto-login process.
|
|
.El
|
|
.Sh ENVIRONMENT
|
|
.Nm Ftp
|
|
utilizes the following environment variables.
|
|
.Bl -tag -width Fl
|
|
.It Ev HOME
|
|
For default location of a
|
|
.Pa .netrc
|
|
file, if one exists.
|
|
.It Ev SHELL
|
|
For default shell.
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr ftpd 8
|
|
.Sh HISTORY
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The
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.Nm ftp
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command appeared in
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.Bx 4.2 .
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.Sh BUGS
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Correct execution of many commands depends upon proper behavior
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by the remote server.
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.Pp
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An error in the treatment of carriage returns
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in the
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.Bx 4.2
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ascii-mode transfer code
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has been corrected.
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This correction may result in incorrect transfers of binary files
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to and from
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.Bx 4.2
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servers using the ascii type.
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Avoid this problem by using the binary image type.
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