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<html><head><title>Job Control (UNIX in a Nutshell: System V Edition)</title><link rel="stylesheet" type="text/css" href="../style/style1.css" /><meta name="DC.Creator" content="Arnold Robbins" /><meta name="DC.Format" content="text/xml" scheme="MIME" /><meta name="DC.Language" content="en-US" /><meta name="DC.Publisher" content="O'Reilly &amp; Associates, Inc." /><meta name="DC.Source" scheme="ISBN" content="1-56592-427-4" /><meta name="DC.Subject.Keyword" content="stuff" /><meta name="DC.Title" content="UNIX in a Nutshell: System V Edition" /><meta name="DC.Type" content="Text.Monograph" /></head><body bgcolor="#ffffff"><img src="gifs/smbanner.gif" usemap="#banner-map" border="0" alt="Book Home" /><map name="banner-map"><area shape="rect" coords="1,-2,616,66" href="index.htm" alt="Book Title" /><area shape="rect" coords="629,-11,726,25" href="jobjects/fsearch.htm" alt="Search this book" /></map><div class="navbar"><table width="684" border="0"><tr><td align="left" valign="top" width="228"><a href="ch05_05.htm"><img src="../gifs/txtpreva.gif" alt="Previous" border="0" /></a></td><td align="center" valign="top" width="228" /><td align="right" valign="top" width="228"><a href="ch05_07.htm"><img src="../gifs/txtnexta.gif" alt="Next" border="0" /></a></td></tr></table></div><h2 class="sect1">5.6. Job Control</h2><p><a name="unut-ch-5-ix-csh-c-shell-job-control" /><a name="unut-ch-5-ix-job-control-for-csh-shells-csh-shell" />Job control lets you place foreground jobs in the background,bring background jobs to the foreground, or suspend(temporarily stop) running jobs.  The C shell provides the followingcommands for job control.  For more information on these commands,see &#8220;Built-in C Shell Commands,&#8221; later in this chapter.</p><dl><dt><tt class="literal">bg</tt></dt><dd>Put a job in the background.</p></dd><dt><tt class="literal">fg</tt></dt><dd>Put a job in the foreground.</p></dd><dt><tt class="literal">jobs</tt></dt><dd>List active jobs.</p></dd><dt><tt class="literal">kill</tt></dt><dd>Terminate a job.</p></dd><dt><tt class="literal">notify</tt></dt><dd>Notify when a background job finishes.</p></dd><dt><tt class="literal">stop</tt></dt><dd>Suspend a background job.</p></dd><dt><tt class="literal">CTRL-Z</tt></dt><dd>Suspend a foreground job.</p></dd></dl><p>Many job-control commands take a <em class="emphasis">jobID</em></tt> as an argument.This argument can be specified as follows:</p><dl><dt><tt class="literal">%</tt><tt><em class="replaceable">n</em></tt></dt><dd>Job number <em class="emphasis">n</em></tt></p></dd><dt><tt class="literal">%</tt><tt><em class="replaceable">s</em></tt></dt><dd>Job whose command line starts with string <em class="emphasis">s</em></tt></p></dd><dt><tt class="literal">%?</tt><tt><em class="replaceable">s</em></tt></dt><dd>Job whose command line contains string <em class="emphasis">s</em></tt></p></dd><dt><tt class="literal">%%</tt></dt><dd>Current job</p></dd><dt><tt class="literal">%</tt></dt><dd>Current job (same as above)</p></dd><dt><tt class="literal">%+</tt></dt><dd>Current job (same as above)</p></dd><dt><tt class="literal">%-</tt></dt><dd>Previous job</p></dd></dl><a name="IXT-5-123023" /><a name="IXT-5-123024" /><hr width="684" align="left" /><div class="navbar"><table width="684" border="0"><tr><td align="left" valign="top" width="228"><a href="ch05_05.htm"><img src="../gifs/txtpreva.gif" alt="Previous" border="0" /></a></td><td align="center" valign="top" width="228"><a href="index.htm"><img src="../gifs/txthome.gif" alt="Home" border="0" /></a></td><td align="right" valign="top" width="228"><a href="ch05_07.htm"><img src="../gifs/txtnexta.gif" alt="Next" border="0" /></a></td></tr><tr><td align="left" valign="top" width="228">5.5. Command History</td><td align="center" valign="top" width="228"><a href="index/index.htm"><img src="../gifs/index.gif" alt="Book Index" border="0" /></a></td><td align="right" valign="top" width="228">5.7. Invoking the Shell</td></tr></table></div><hr width="684" align="left" /><img src="../gifs/navbar.gif" usemap="#library-map" border="0" alt="Library Navigation Links" /><p><p><font size="-1"><a href="copyrght.htm">Copyright &copy; 2003</a> O'Reilly &amp; Associates. All rights reserved.</font></p><map name="library-map"><area shape="rect" coords="1,0,88,96" href="../index.htm"><area shape="rect" coords="90,0,165,96" href="../upt/index.htm"><area shape="rect" coords="168,1,253,107" href="../mac/index.htm"><area shape="rect" coords="255,0,335,97" href="../korn/index.htm"><area shape="rect" coords="337,0,415,109" href="../unixnut/index.htm"><area shape="rect" coords="417,0,512,122" href="../sedawk/index.htm"><area shape="rect" coords="514,0,605,105" href="../lunix/index.htm"><area shape="rect" coords="611,2,694,121" href="../vi/index.htm"></map></body></html>
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