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<html xmlns="http://www.w3.org/1999/xhtml"><head><title>exec</title><link rel="stylesheet" href="../../jargon.css" type="text/css"/><meta name="generator" content="DocBook XSL Stylesheets V1.61.0"/><link rel="home" href="../index.html" title="The Jargon File"/><link rel="up" href="../E.html" title="E"/><link rel="previous" href="EXE.html" title="EXE"/><link rel="next" href="exercise--left-as-an.html" title="exercise, left as an"/></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">exec</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="EXE.html">Prev</a> </td><th width="60%" align="center">E</th><td width="20%" align="right"> <a accesskey="n" href="exercise--left-as-an.html">Next</a></td></tr></table><hr/></div><dt><a id="exec"/><dt xmlns="" id="exec"><b>exec</b>: <span xmlns="http://www.w3.org/1999/xhtml" class="pronunciation">/eg·zek´/</span>, <span xmlns="http://www.w3.org/1999/xhtml" class="pronunciation">/eks´ek/</span>, <span xmlns="http://www.w3.org/1999/xhtml" class="grammar">n.</span></dt></dt><dd><p> 1. [Unix: from <span class="firstterm">execute</span>]
Synonym for <a href="../C/chain.html"><i class="glossterm">chain</i></a>, derives from the
<span class="citerefentry"><span class="refentrytitle">exec</span>(2)</span>
call. </p></dd><dd><p> 2. [from <span class="firstterm">executive</span>] obs. The
command interpreter for an <a href="../O/OS.html"><i class="glossterm">OS</i></a> (see
<a href="../S/shell.html"><i class="glossterm">shell</i></a>); term esp. used around mainframes, and
prob.: derived from UNIVAC's archaic EXEC 2 and EXEC 8 operating systems.
</p></dd><dd><p> 3. At IBM and VM/CMS shops, the equivalent of a shell command file
(among VM/CMS users).</p></dd><dd><p>The mainstream &#8216;exec&#8217; as an abbreviation for (human)
executive is <span class="emphasis"><em>not</em></span> used. To a hacker, an
&#8216;exec&#8217; is always a program, never a person.</p></dd><div class="navfooter"><hr/><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="EXE.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="../E.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="exercise--left-as-an.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">EXE </td><td width="20%" align="center"><a accesskey="h" href="../index.html">Home</a></td><td width="40%" align="right" valign="top"> exercise, left as an</td></tr></table></div></body></html>