130 lines
3.8 KiB
HTML
130 lines
3.8 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>qsh - Qshell command language interpreter</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>qsh - Qshell command language interpreter</h2>
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<strong>Synopsis</strong>
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<p>
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<strong>qsh [-abCefFijlmntuvx] [-o</strong> <em>
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option</em><strong>]</strong> <em>command_file arg ...</em></p>
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<p><strong>qsh -c [-abCefFijlmntuvx] [-o</strong> <em>
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option</em><strong>]</strong> <em>command_string</em></p>
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<p><strong>qsh -s [-abCefFijlmntuvx] [-o</strong> <em>
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option</em><strong>]</strong> <em>arg ...</em>
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</p>
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<p><strong>Description</strong></p>
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<p>The <strong>qsh</strong> utility is the Qshell command language
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interpreter. In the first synopsis form, <strong>qsh</strong> reads
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the specified <em>command_file</em> and runs the commands contained
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in the file. In the second synopsis form, <strong>qsh</strong> runs
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the specified <em>command_string</em> and ends. In the third
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synopsis form, <strong>qsh</strong> reads commands from standard
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input.</p>
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<p><strong>Options</strong></p>
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<p>The <strong>a, b, C, e, f, F, j, l, m, n, -o</strong> <em>
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option</em> <strong>t, u, v,</strong> and <strong>x</strong>
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options are described in <a href="set.htm">set - Set or unset
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options and positional parameters</a>.</p>
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<dl>
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<dt><strong>-c</strong></dt>
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<dd>Run the command specified in <em>command_string</em> and
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exit.</dd>
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<dt><strong>-i</strong></dt>
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<dd>The shell is interactive. If there are no operands and standard
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input is connected to a terminal, the <strong>-i</strong> option is
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set by default.</dd>
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<dt><strong>-s</strong></dt>
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<dd>Read commands from standard input. If there are no operands and
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the <strong>-c</strong> option is not specified, the <strong>
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-s</strong> option is set by default.</dd>
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</dl>
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<p><strong>Operands</strong></p>
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<p>The <em>command_file</em> is the pathname of a regular file that
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contains Qshell commands. If the pathname does not contain a slash
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(/) character, <strong>qsh</strong> searches for <em>
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command_file</em> using the <strong>PATH</strong> variable. The
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special parameter 0 is set to the value of <em>command_file</em>.
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Each <em>arg</em> is a positional parameter.</p>
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<p>The <em>command_string</em> is any Qshell command, including
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compound commands.</p>
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<p><strong>Exit Status</strong></p>
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<p>
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<ul>
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<li>0 when successful.</li>
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<li>1 when unsuccessful.</li>
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<li>2 when an error occurred in a script.</li>
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<li>3 when there was an unexpected exception in a root shell.</li>
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<li>4 when there was an unexpected exception in an exception handler for a root shell.</li>
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<li>5 when there was an unexpected exception in a child shell.</li>
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<li>6 when there was an unexpected exception in an exception handler for a child shell.</li>
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<li>7 when descriptor 0 was not available.</li>
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<li>8 when descriptor 1 was not available.</li>
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<li>9 when descriptor 2 was not available.</li>
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<li>10 when there was an error opening the message catalog.</li>
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<li>11-125 when unsuccessful.</li>
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<li>126 when a command was found but could not be invoked.</li>
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<li>127 when a command cannot be found.</li>
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<li>>128 when a command was ended by a signal. The value is 128 plus the signal number.</li>
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</ul>
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</p>
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<p><strong>Related information</strong></p>
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<ul>
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<li><a href="exit.htm">exit - Exit from the shell</a></li>
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<li><a href="set.htm">set - Set or unset options and positional
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parameters</a></li>
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<li><a href="shell.htm">Qshell command language</a></li>
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</ul>
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<!-- end ibmbody========================================================= -->
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</body>
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</html>
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