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<title>Debian parallel package - build and execute shell command lines from standard input in parallel</title>
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<h1>Debian parallel package - Applications manuals index</h1>
<h2><a href="parallel.html">parallel</a></h2>
<p>GNU <strong>parallel</strong> is a shell tool for executing jobs
concurrently locally or using remote computers. A job is typically a
single command or a small script that has to be run for each of the
lines in the input. The typical input is a list of files, a list of
hosts, a list of users, a list of URLs, or a list of tables.</p>
<h2><a href="sem.html">sem</a></h2>
<p>GNU <strong>sem</strong> is an alias for GNU <strong>parallel
--semaphore</strong>.</p>
<p>It works as a tool for executing shell commands in parallel. GNU
<strong>sem</strong> acts as a counting semaphore. When GNU
<strong>sem</strong> is called with command it will start the command
in the background. When <em>num</em> number of commands are running in
the background, GNU <strong>sem</strong> will wait for one of these to
complete before starting another command.</p>
<h2><a href="sql.html">sql</a></h2>
<p>GNU <strong>sql</strong> aims to give a simple, unified interface
for accessing databases through all the different databases' command
line clients. The database is addressed using a DBURL. If <em>commands</em>
are left out you will get that database's interactive shell.</p>
<p>GNU <strong>sql</strong> is often used in combination with GNU
<strong>parallel</strong>.</p>
<h2><a href="niceload.html">niceload</a></h2>
<p>GNU <strong>niceload</strong> will run a program when the load average
is below a certain limit. When the limit is reached the program will be
suspended for some time. Then resumed again for some time. Then the load
average is checked again and we start over.</p>
<hr />
<h1><a name="author">Author</a></h1>
<p>When using GNU Parallel for a publication please cite:</p>
<p>O. Tange (2011): GNU Parallel - The Command-Line Power Tool, ;login: The USENIX Magazine, February 2011:42-47.</p>
<p>Copyright (C) 2007-10-18 Ole Tange, <a href="http://ole.tange.dk">http://ole.tange.dk</a></p>
<p>Copyright (C) 2008,2009,2010 Ole Tange, <a href="http://ole.tange.dk">http://ole.tange.dk</a></p>
<p>Copyright (C) 2010,2011 Ole Tange, <a href="http://ole.tange.dk">http://ole.tange.dk</a> and Free
Software Foundation, Inc.</p>
<p>Parts of the manual concerning <strong>xargs</strong> compatibility is inspired by
the manual of <strong>xargs</strong> from GNU findutils 4.4.2.</p>
<p>
</p>
<hr />
<h1><a name="license">License</a></h1>
<p>Copyright (C) 2007,2008,2009,2010,2011 Free Software Foundation, Inc.</p>
<p>This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
at your option any later version.</p>
<p>This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.</p>
<p>You should have received a copy of the GNU General Public License
along with this program. If not, see &lt;http://www.gnu.org/licenses/&gt;.</p>
<p>
</p>
<h2><a name="documentation_license_i">Documentation license I</a></h2>
<p>Permission is granted to copy, distribute and/or modify this documentation
under the terms of the GNU Free Documentation License, Version 1.3 or
any later version published by the Free Software Foundation; with no
Invariant Sections, with no Front-Cover Texts, and with no Back-Cover
Texts. A copy of the license is included in the file fdl.txt.</p>
<p>
</p>
<h2><a name="documentation_license_ii">Documentation license II</a></h2>
<p>You are free:</p>
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<p>Under the following conditions:</p>
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<p>You must attribute the work in the manner specified by the author or
licensor (but not in any way that suggests that they endorse you or
your use of the work).</p>
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<dt><strong><a name="share_alike" class="item"><strong>Share Alike</strong></a></strong></dt>
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<p>A copy of the full license is included in the file as cc-by-sa.txt.</p>
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