Contents |
Synopsis |
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xtp [ -options ... ] <uniform resource locator>
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Description |
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Xtp is a utility for retrieving, listing, or printing files from
a remote network site, or sending files to a remote network site. xtp
performs most of the same functions as the ftp(1) program, but does
not require any interactive commands. You simply specify the file transfer
task on the command line and xtp performs the task automatically.
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Examples |
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To retrieve the file bird.jpg in directory images from host
wizard.wizards.dupont.com,
use:
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xtp ftp://wizard.wizards.dupont.com/images/bird.jpg
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To retrieve all the files from directory images from host wizard.wizards.dupont.com,
use:
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xtp -retrieve ftp://wizard.wizards.dupont.com/images/
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You will be prompted for a password.
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To retrieve all the files from directory images as user magick
and password magick from host
wizard.wizards.dupont.com,
use:
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xtp -retrieve ftp://magick:magick@wizard.wizards.dupont.com/images/
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Options |
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Options are processed in command line order. Any option you specify on
the command line remains in effect until it is explicitly changed by specifying
the option again with a different effect.
-account
password |
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Supply a supplemental password required by a remote system for access to
resources.
-binary |
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retrieve files as binary. This is the default. Use
+binary to retrieve
files as text.
-directory |
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list the names of files and their attributes that match the filename component
of the uniform resource locator. The filename component is processed as
a regular expression.
-exclude
expression |
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exclude files that match the regular expression.
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This option applies to the -directory, -print, or
-retrieve
options.
-file
name |
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store the file with this name.
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Refer to the -get and -put option for more details.
-get |
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get files that match the filename component of the uniform resource locator.
The filename component is expanded by passing it to csh(1).
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This option is equivalent to using the ftp get command. However,
if the filename contains globbing characters this option is equivalent
to the ftp mget command. Without globbing characters, you
can store the file locally with a different name by using the -file
option.
-ident
password |
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Supply a password required by a remote system. This defaults to your username
and hostname.
-port
number |
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If no port number is specified, xtp attempts to contact a FTP server
at the default port. Otherwise, the specified port number is used.
-proxy
hostname |
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access the remote host via a proxy ftpd client running on this host.
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The default value of this option can be set with the environment variable
xtp_proxy. See Environment for more details.
Use +proxy to prevent proxy connections.
-print |
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print files that match the filename component of the uniform resource locator.
The filename component is processed as a regular expression.
-prune |
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process files in the remote directory specified by the directory component
of the uniform resource locator. Do not recursively search for files.
-put |
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put files that match the filename component of the uniform resource locator.
The filename component is expanded by passing it to csh(1).
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This option is equivalent to using the ftp put command. However,
if the filename contains globbing characters, this option is equivalent
to the ftp mput command.
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Without globbing characters, you can store the file remotely with a different
name by using the -file option.
-retrieve |
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retrieve files that match the filename component of the uniform resource
locator. The filename component is processed as a regular expression.
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Retrieved files are stored on your local host directory as the full name
of the retrieved file. For example, if the retrieved file is named documents/xtp.man
on the remote FTP server, it will appear in your remote directory as documents/xtp.man.
-timeout
seconds |
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specifies the maximum seconds to complete your remote FTP server request.
If this time expires, the program terminates. The program also terminates
if one tenth of this value is exceeded while logging onto the remote FTP
server.
-type
name |
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identify the remote system type: UNIX, VMS, or other.
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The system type is determined automatically, however, you can override
the system type with this option.
-verbose |
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show all responses from the remote server.
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If only the program name is specified on the command line, the program
command syntax and options are listed.
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If neither -directory, -print, -put, or
-retrieve
are specified on the command line, the file or files specified by the
uniform resource locator is retrieved from the remote network host
(as if -get was specified).
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Uniform resource locator has the format:
protocol://host/[directory/[filename]]
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where protocol is ftp and host is
[user[:password]]@hostname.
User defaults to anonymous and password defaults to host.domain.
Note that
directory/[filename] is interpreted relative to the
home directory for user, thus an absolute pathname must be specified
with the leading /;
ftp://host//tmp/anyfile
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As an extension, the filename part of the locator is expanded by the shell
for options -get or -put, otherwise it is processed as a
regular expression. For convenience, the protocol component of the uniform
resource locator (ftp://) may be omitted.
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Xtp retrieves files from the remote directory for -get and
puts files in the remote directory for -put. Otherwise, xtp
looks for a file of the form ls-lls-l([Rt])+([Rt])* and assumes
it contains a recursive directory listing. If none is found, xtp
recursively descends the directory hierarchy from the remote directory.
Some remote hosts may have thousands of files causing a significant delay
satisfying your request. This can be wasteful if the files you are interested
in reside in a known directory. You can reduce the searching required by
specifying remote directory on the command line. This limits the
filename search to the specified directory and any of its subdirectories.
Alternatively, -prune restricts the search to the remote directory
only.
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Regular
Expressions |
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A regular expression is zero or more branches, separated
by |. It matches anything that matches one of the branches.
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A branch is zero or more pieces, concatenated. It matches a match for the
first, followed by a match for the second, etc.
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A piece is an atom possibly followed by *, +, or
?.
An atom followed by * matches a sequence of 0 or more matches of
the atom. An atom followed by + matches a sequence of 1 or more
matches of the atom. An atom followed by ? matches a match of the
atom, or the null pattern.
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An atom is a regular expression in parentheses (matching
a match for the regular expression), a range (see below),
. (matching any single character), ^ (matching the null pattern
at the beginning of the input pattern), $ (matching the null pattern
at the end of the input pattern), a ' followed by a single character
(matching that character), or a single character with no other significance
(matching that character).
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A range is a sequence of characters enclosed in []. It normally
matches any single character from the sequence. If the sequence begins
with ^, it matches any single character not from the rest of the
sequence. If two characters in the sequence are separated by -,
this is shorthand for the full list of ASCII characters between them (e.g.
[0-9] matches any decimal digit). To include a literal ]
in the sequence, make it the first character (following a possible ^).
To include a literal -, make it the first or last character.
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Files |
~/.netrc |
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Environment |
xtp_proxy |
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Specifies that the remote site should be contacted by proxy. See -proxy.
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Acknowledgements |
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Steve Singles, University of Delaware, for the initial implementation
of this program.
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Henry Spencer, University of Toronto, for the implementation
of the regular expression interpreter and the text in
Regular
Expressions.
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Authors |
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John Cristy, magick@wizards.dupont.com
ImageMagick Studio.
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Copyright |
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Copyright (C) 2000 ImageMagick Studio
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Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files ("ImageMagick"),
to deal in ImageMagick without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of ImageMagick, and to permit persons to whom the ImageMagick
is furnished to do so, subject to the following conditions:
-
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of ImageMagick.
-
-
The software is provided "as is", without warranty of any kind, express
or implied, including but not limited to the warranties of merchantability,
fitness for a particular purpose and noninfringement.In no event shall
ImageMagick Studio be liable for any claim, damages or
other liability, whether in an action of contract, tort or otherwise, arising
from, out of or in connection with ImageMagick or the use or other dealings
in ImageMagick.
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Except as contained in this notice, the name of the E. I. du Pont de
Nemours and Company shall not be used in advertising or otherwise to promote
the sale, use or other dealings in ImageMagick without prior written authorization
from the ImageMagick Studio.
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Image manipulation software that works like magic.