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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta name="generator" content="HTML Tidy, see www.w3.org"><meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"><link type="text/css" rel="stylesheet" href="style.css"><!-- Generated by The Open Group's rhtm tool v1.2.1 --><!-- Copyright (c) 2001-2004 IEEE and The Open Group, All Rights Reserved --><title>qdel</title></head><body bgcolor="white"><script type="text/javascript" language="JavaScript" src="../jscript/codes.js"></script><basefont size="3"> <a name="qdel"></a> <a name="tag_04_107"></a><!-- qdel --> <!--header start--><center><font size="2">The Open Group Base Specifications Issue 6<br>IEEE Std 1003.1, 2004 Edition<br>Copyright © 2001-2004 The IEEE and The Open Group, All Rights reserved.</font></center><!--header end--><hr size="2" noshade><h4><a name="tag_04_107_01"></a>NAME</h4><blockquote>qdel - delete batch jobs</blockquote><h4><a name="tag_04_107_02"></a>SYNOPSIS</h4><blockquote class="synopsis"><div class="box"><code><tt><sup>[<a href="javascript:open_code('BE')">BE</a>]</sup> <img src="../images/opt-start.gif" alt="[Option Start]" border="0"> qdel</tt> <i>job_identifier</i> <tt>... <img src="../images/opt-end.gif" alt="[Option End]" border="0"></tt></code></div></blockquote><h4><a name="tag_04_107_03"></a>DESCRIPTION</h4><blockquote><p>A batch job is deleted by sending a request to the batch server that manages the batch job. A batch job that has been deleted isno longer subject to management by batch services.</p><p>The <i>qdel</i> utility is a user-accessible client of batch services that requests the deletion of one or more batch jobs.</p><p>The <i>qdel</i> utility shall request a batch server to delete those batch jobs for which a batch <i>job_identifier</i> ispresented to the utility.</p><p>The <i>qdel</i> utility shall delete batch jobs in the order in which their batch <i>job_identifier</i>s are presented to theutility.</p><p>If the <i>qdel</i> utility fails to process any batch <i>job_identifier</i> successfully, the utility shall proceed to processthe remaining batch <i>job_identifier</i>s, if any.</p><p>The <i>qdel</i> utility shall delete each batch job by sending a <i>Delete Job Request</i> to the batch server that manages thebatch job.</p><p>The <i>qdel</i> utility shall not exit until the batch job corresponding to each successfully processed batch<i>job_identifier</i> has been deleted.</p></blockquote><h4><a name="tag_04_107_04"></a>OPTIONS</h4><blockquote><p>None.</p></blockquote><h4><a name="tag_04_107_05"></a>OPERANDS</h4><blockquote><p>The <i>qdel</i> utility shall accept one or more operands that conform to the syntax for a batch <i>job_identifier</i> (see <ahref="xcu_chap03.html#tag_03_03_01"><i>Batch Job Identifier</i></a> ).</p></blockquote><h4><a name="tag_04_107_06"></a>STDIN</h4><blockquote><p>Not used.</p></blockquote><h4><a name="tag_04_107_07"></a>INPUT FILES</h4><blockquote><p>None.</p></blockquote><h4><a name="tag_04_107_08"></a>ENVIRONMENT VARIABLES</h4><blockquote><p>The following environment variables shall affect the execution of <i>qdel</i>:</p><dl compact><dt><i>LANG</i></dt><dd>Provide a default value for the internationalization variables that are unset or null. (See the Base Definitions volume ofIEEE Std 1003.1-2001, <a href="../basedefs/xbd_chap08.html#tag_08_02">Section 8.2, Internationalization Variables</a> forthe precedence of internationalization variables used to determine the values of locale categories.)</dd><dt><i>LC_ALL</i></dt><dd>If set to a non-empty string value, override the values of all the other internationalization variables.</dd><dt><i>LC_CTYPE</i></dt><dd>Determine the locale for the interpretation of sequences of bytes of text data as characters (for example, single-byte asopposed to multi-byte characters in arguments).</dd><dt><i>LC_MESSAGES</i></dt><dd>Determine the locale that should be used to affect the format and contents of diagnostic messages written to standarderror.</dd><dt><i>LOGNAME</i></dt><dd>Determine the login name of the user.</dd></dl></blockquote><h4><a name="tag_04_107_09"></a>ASYNCHRONOUS EVENTS</h4><blockquote><p>Default.</p></blockquote><h4><a name="tag_04_107_10"></a>STDOUT</h4><blockquote><p>An implementation of the <i>qdel</i> utility may write informative messages to standard output.</p></blockquote><h4><a name="tag_04_107_11"></a>STDERR</h4><blockquote><p>The standard error shall be used only for diagnostic messages.</p></blockquote><h4><a name="tag_04_107_12"></a>OUTPUT FILES</h4><blockquote><p>None.</p></blockquote><h4><a name="tag_04_107_13"></a>EXTENDED DESCRIPTION</h4><blockquote><p>None.</p></blockquote><h4><a name="tag_04_107_14"></a>EXIT STATUS</h4><blockquote><p>The following exit values shall be returned:</p><dl compact><dt> 0</dt><dd>Successful completion.</dd><dt>>0</dt><dd>An error occurred.</dd></dl></blockquote><h4><a name="tag_04_107_15"></a>CONSEQUENCES OF ERRORS</h4><blockquote><p>In addition to the default behavior, the <i>qdel</i> utility shall not be required to write a diagnostic message to standarderror when the error reply received from a batch server indicates that the batch <i>job_identifier</i> does not exist on theserver. Whether or not the <i>qdel</i> utility waits to output the diagnostic message while attempting to locate the job on otherservers is implementation-defined.</p></blockquote><hr><div class="box"><em>The following sections are informative.</em></div><h4><a name="tag_04_107_16"></a>APPLICATION USAGE</h4><blockquote><p>None.</p></blockquote><h4><a name="tag_04_107_17"></a>EXAMPLES</h4><blockquote><p>None.</p></blockquote><h4><a name="tag_04_107_18"></a>RATIONALE</h4><blockquote><p>The <i>qdel</i> utility allows users and administrators to delete jobs.</p><p>The <i>qdel</i> utility provides functionality that is not otherwise available. For example, the <a href="../utilities/kill.html"><i>kill</i></a> utility of the operating system does not suffice. First, to use the <a href="../utilities/kill.html"><i>kill</i></a> utility, the user might have to log in on a remote node, because the <a href="../utilities/kill.html"><i>kill</i></a> utility does not operate across the network. Second, unlike <i>qdel</i>, <a href="../utilities/kill.html"><i>kill</i></a> cannot remove jobs from queues. Lastly, the arguments of the <i>qdel</i> utility are jobidentifiers rather than process identifiers, and so this utility can be passed the output of the <a href="../utilities/qselect.html"><i>qselect</i></a> utility, thus providing users with a means of deleting a list of jobs.</p><p>Because a set of jobs can be selected using the <a href="../utilities/qselect.html"><i>qselect</i></a> utility, the <i>qdel</i>utility has not been complicated with options that provide for selection of jobs. Instead, the batch jobs to be deleted areidentified individually by their job identifiers.</p><p>Historically, the <i>qdel</i> utility has been a component of NQS, the existing practice on which it is based. However, the<i>qdel</i> utility defined in this volume of IEEE Std 1003.1-2001 does not provide an option for specifying a signalnumber to send to the batch job prior to the killing of the process; that capability has been subsumed by the <a href="../utilities/qsig.html"><i>qsig</i></a> utility.</p><p>A discussion was held about the delays of networking and the possibility that the batch server may never respond, due to a downrouter, down batch server, or other network mishap. The DESCRIPTION records this under the words "fails to process any jobidentifier". In the broad sense, the network problem is also an error, which causes the failure to process the batch jobidentifier.</p></blockquote><h4><a name="tag_04_107_19"></a>FUTURE DIRECTIONS</h4><blockquote><p>None.</p></blockquote><h4><a name="tag_04_107_20"></a>SEE ALSO</h4><blockquote><p><a href="xcu_chap03.html#tag_03"><i>Batch Environment Services</i></a>, <a href="kill.html"><i>kill</i>()</a>, <a href="qselect.html"><i>qselect</i></a>, <a href="qsig.html"><i>qsig</i></a></p></blockquote><h4><a name="tag_04_107_21"></a>CHANGE HISTORY</h4><blockquote><p>Derived from IEEE Std 1003.2d-1994.</p></blockquote><h4><a name="tag_04_107_22"></a>Issue 6</h4><blockquote><p>The <i>LC_TIME</i> and <i>TZ</i> entries are removed from the ENVIRONMENT VARIABLES section.</p></blockquote><div class="box"><em>End of informative text.</em></div><hr size="2" noshade><center><font size="2"><!--footer start-->UNIX ® is a registered Trademark of The Open Group.<br>POSIX ® is a registered Trademark of The IEEE.<br>[ <a href="../mindex.html">Main Index</a> | <a href="../basedefs/contents.html">XBD</a> | <a href="../utilities/contents.html">XCU</a> | <a href="../functions/contents.html">XSH</a> | <a href="../xrat/contents.html">XRAT</a>]</font></center><!--footer end--><hr size="2" noshade></body></html>⌨️ 快捷键说明
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