20 lines
3.2 KiB
HTML
20 lines
3.2 KiB
HTML
<?xml version="1.0" encoding="ISO-8859-1" standalone="no"?>
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<html xmlns="http://www.w3.org/1999/xhtml"><head><title>JCL</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="../J.html" title="J"/><link rel="previous" href="Java.html" title="Java"/><link rel="next" href="JEDR.html" title="JEDR"/></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">JCL</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="Java.html">Prev</a> </td><th width="60%" align="center">J</th><td width="20%" align="right"> <a accesskey="n" href="JEDR.html">Next</a></td></tr></table><hr/></div><dt><a id="JCL"/><dt xmlns="" id="JCL"><b>JCL</b>: <span xmlns="http://www.w3.org/1999/xhtml" class="pronunciation">/J·C·L/</span>, <span xmlns="http://www.w3.org/1999/xhtml" class="grammar">n.</span></dt></dt><dd><p> 1. IBM's supremely <a href="../R/rude.html"><i class="glossterm">rude</i></a> Job Control Language.
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JCL is the script language used to control the execution of programs in
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IBM's batch systems. JCL has a very <a href="../F/fascist.html"><i class="glossterm">fascist</i></a> syntax,
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and some versions will, for example, <a href="../B/barf.html"><i class="glossterm">barf</i></a> if two
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spaces appear where it expects one. Most programmers confronted with JCL
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simply copy a working file (or card deck), changing the file names.
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Someone who actually understands and generates unique JCL is regarded with
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the mixed respect one gives to someone who memorizes the phone book. It is
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reported that hackers at IBM itself sometimes sing “<span class="quote">Who's the breeder
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of the crud that mangles you and me? I-B-M, J-C-L, M-o-u-s-e</span>” to
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the tune of the <i class="citetitle">Mickey Mouse Club</i> theme to express
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their opinion of the beast. </p></dd><dd><p> 2. A comparative for any very <a href="../R/rude.html"><i class="glossterm">rude</i></a> software
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that a hacker is expected to use. “<span class="quote">That's as bad as JCL.</span>” As
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with <a href="../C/COBOL.html"><i class="glossterm">COBOL</i></a>, JCL is often used as an archetype of
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ugliness even by those who haven't experienced it. See also
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<a href="../I/IBM.html"><i class="glossterm">IBM</i></a>,
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<a href="../F/fear-and-loathing.html"><i class="glossterm">fear and loathing</i></a>.</p></dd><dd><p>A (poorly documented, naturally) shell simulating JCL syntax is
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available at the Retrocomputing Museum <a href="http://www.catb.org/retro/" target="_top">http://www.catb.org/retro/</a>.</p></dd><div class="navfooter"><hr/><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="Java.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="../J.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="JEDR.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Java </td><td width="20%" align="center"><a accesskey="h" href="../index.html">Home</a></td><td width="40%" align="right" valign="top"> JEDR</td></tr></table></div></body></html>
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