47 lines
1.0 KiB
HTML
47 lines
1.0 KiB
HTML
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
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<html>
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<head>
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<meta name="generator" content="HTML Tidy, see www.w3.org">
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<meta http-equiv="Content-Type" content=
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"text/html; charset=utf-8">
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<title>While command</title>
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<LINK rel="stylesheet" type="text/css" href="../rzahg/ic.css">
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</HEAD>
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<body bgcolor="#FFFFFF">
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<!-- Java sync-link -->
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<SCRIPT LANGUAGE="Javascript" SRC="../rzahg/synch.js" TYPE="text/javascript"></SCRIPT>
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<h2>While command</h2>
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<p>The syntax of the <strong>while</strong> command is</p>
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<p><strong>while</strong> <em>list1</em></p>
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<p><strong>do</strong> <em>list2</em></p>
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<p><strong>done</strong></p>
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<p><strong>qsh</strong> runs the two lists repeatedly while the
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exit status of <em>list1</em> is zero. When the exit status of <em>
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list1</em> is non-zero the command completes.</p>
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<p><strong>Examples</strong></p>
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<ol>
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<li>A while command to iterate until a condition is met.
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<pre>
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max=100
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index=0
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while [[ $index -lt $max ]] ; do
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echo Index is $index
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let index+=1
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done
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</pre>
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</li>
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</ol>
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</body>
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</html>
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