88 lines
2.3 KiB
HTML
88 lines
2.3 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>read - Read a line from standard input</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>read - Read a line from standard input</h2>
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<strong>Synopsis</strong>
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<p><strong>read</strong> [ <strong>-r</strong> ] [ <strong>
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-p</strong> <em>prompt</em> ] [ <strong>-u</strong> [ <em>n</em> ]
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] [ <em>name</em> ... ]</p>
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<p><strong>Description</strong></p>
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<p>You can use <strong>read</strong> to read a line and split it
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into fields using the characters from the <strong>IFS</strong>
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variable as delimiters. By default, a backslash
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(<strong>\</strong>) at the end of a line causes the line to be
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continued on the next line. <strong>qsh</strong> removes both the
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backslash and the <newline>.</p>
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<p><strong>Options</strong></p>
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<dl>
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<dt><strong>-p</strong> <em>prompt</em></dt>
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<dd>When the interactive option is set, display <em>prompt</em> on
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stderr.</dd>
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<dt><strong>-r</strong></dt>
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<dd>A backslash at the end of a line does not mean continue the
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line.</dd>
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<dt><strong>-u</strong> <em>n</em></dt>
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<dd>Read from descriptor <em>n</em> if specified or descriptor 0 by
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default. The descriptor must be 0 or one that you opened with
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<strong>exec</strong>.</dd>
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</dl>
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<p><strong>Operands</strong></p>
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<p>Each <em>name</em> is assigned to the corresponding field from
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the input line. Any leftover fields are assigned to the last <em>
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name</em>. The default name is the <strong>REPLY</strong>
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variable.</p>
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<p><strong>Exit Status</strong></p>
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<ul>
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<li>0 when successful.</li>
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<li>>0 when unsuccessful.</li>
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</ul>
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<p><strong>Related information</strong></p>
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<ul>
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<li><a href="exec.htm">exec - Run commands and open, close, or copy
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descriptors</a></li>
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<li><a href="print.htm">print - Write output</a></li>
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</ul>
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<strong>Examples</strong>
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<ol>
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<li>Read a line from stdin after displaying a prompt: <strong>
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read</strong> -p `Enter a name: ' firstname lastname</li>
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<li>Read a line from descriptor 5: <strong>read</strong> -u5</li>
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</ol>
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</body>
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</html>
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