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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) 2001-2003 The Open Group, All Rights Reserved --><title>qhold</title></head><body bgcolor="white"><script type="text/javascript" language="JavaScript" src="../jscript/codes.js"></script><basefont size="3"> <a name="qhold"></a> <a name="tag_04_108"></a><!-- qhold --> <!--header start--><center><font size="2">The Open Group Base Specifications Issue 6<br>IEEE Std 1003.1, 2003 Edition<br>Copyright © 2001-2003 The IEEE and The Open Group, All Rights reserved.</font></center><!--header end--><hr size="2" noshade><h4><a name="tag_04_108_01"></a>NAME</h4><blockquote>qhold - hold batch jobs</blockquote><h4><a name="tag_04_108_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"> qhold</tt> <b>[</b><tt>-h</tt> <i>hold_list</i><b>]</b> <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_108_03"></a>DESCRIPTION</h4><blockquote><p>A hold is placed on a batch job by a request to the batch server that manages the batch job. A batch job that has one or moreholds is not eligible for execution. The <i>qhold</i> utility is a user-accessible client of batch services that requests one ormore types of hold to be placed on one or more batch jobs.</p><p>The <i>qhold</i> utility shall place holds on those batch jobs for which a batch <i>job_identifier</i> is presented to theutility.</p><p>The <i>qhold</i> utility shall place holds on batch jobs in the order in which their batch <i>job_identifier</i>s are presentedto the utility. If the <i>qhold</i> utility fails to process any batch <i>job_identifier</i> successfully, the utility shallproceed to process the remaining batch <i>job_identifier</i>s, if any.</p><p>The <i>qhold</i> utility shall place holds on each batch job by sending a <i>Hold Job Request</i> to the batch server thatmanages the batch job.</p><p>The <i>qhold</i> utility shall not exit until holds have been placed on the batch job corresponding to each successfullyprocessed batch <i>job_identifier</i>.</p></blockquote><h4><a name="tag_04_108_04"></a>OPTIONS</h4><blockquote><p>The <i>qhold</i> utility shall conform to the Base Definitions volume of IEEE Std 1003.1-2001, <a href="../basedefs/xbd_chap12.html#tag_12_02">Section 12.2, Utility Syntax Guidelines</a>.</p><p>The following option shall be supported by the implementation:</p><dl compact><dt><b>-h </b> <i>hold_list</i></dt><dd>Define the types of holds to be placed on the batch job. <p>The <i>qhold</i> <b>-h</b> option shall accept a value for the <i>hold_list</i> option-argument that is a string of alphanumericcharacters in the portable character set (see the Base Definitions volume of IEEE Std 1003.1-2001, <a href="../basedefs/xbd_chap06.html#tag_06_01">Section 6.1, Portable Character Set</a>).</p><p>The <i>qhold</i> utility shall accept a value for the <i>hold_list</i> option-argument that is a string of one or more of thecharacters <tt>'u'</tt> , <tt>'s'</tt> , or <tt>'o'</tt> , or the single character <tt>'n'</tt> .</p><p>For each unique character in the <i>hold_list</i> option-argument, the <i>qhold</i> utility shall add a value to the<i>Hold_Types</i> attribute of the batch job as follows, each representing a different hold type:</p><dl compact><dt><tt>u</tt></dt><dd>USER</dd><dt><tt>s</tt></dt><dd>SYSTEM</dd><dt><tt>o</tt></dt><dd>OPERATOR</dd></dl><p>If any of these characters are duplicated in the <i>hold_list</i> option-argument, the duplicates shall be ignored.</p><p>An existing <i>Hold_Types</i> attribute can be cleared by the following hold type:</p><dl compact><dt><tt>n</tt></dt><dd>NO_HOLD</dd></dl><p>The <i>qhold</i> utility shall consider it an error if any hold type other than <tt>'n'</tt> is combined with hold type<tt>'n'</tt> .</p><p>Strictly conforming applications shall not repeat any of the characters <tt>'u'</tt> , <tt>'s'</tt> , <tt>'o'</tt> , or<tt>'n'</tt> within the <i>hold_list</i> option-argument. The <i>qhold</i> utility shall permit the repetition of characters, butshall not assign additional meaning to the repeated characters.</p><p>An implementation may define other hold types. The conformance document for an implementation shall describe any additional holdtypes, how they are specified, their internal behavior, and how they affect the behavior of the utility.</p><p>If the <b>-h</b> option is not presented to the <i>qhold</i> utility, the implementation shall set the <i>Hold_Types</i>attribute to USER.</p></dd></dl></blockquote><h4><a name="tag_04_108_05"></a>OPERANDS</h4><blockquote><p>The <i>qhold</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_108_06"></a>STDIN</h4><blockquote><p>Not used.</p></blockquote><h4><a name="tag_04_108_07"></a>INPUT FILES</h4><blockquote><p>None.</p></blockquote><h4><a name="tag_04_108_08"></a>ENVIRONMENT VARIABLES</h4><blockquote><p>The following environment variables shall affect the execution of <i>qhold</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_108_09"></a>ASYNCHRONOUS EVENTS</h4><blockquote><p>Default.</p></blockquote><h4><a name="tag_04_108_10"></a>STDOUT</h4><blockquote><p>None.</p></blockquote><h4><a name="tag_04_108_11"></a>STDERR</h4><blockquote><p>The standard error shall be used only for diagnostic messages.</p></blockquote><h4><a name="tag_04_108_12"></a>OUTPUT FILES</h4><blockquote><p>None.</p></blockquote><h4><a name="tag_04_108_13"></a>EXTENDED DESCRIPTION</h4><blockquote><p>None.</p></blockquote><h4><a name="tag_04_108_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_108_15"></a>CONSEQUENCES OF ERRORS</h4><blockquote><p>In addition to the default behavior, the <i>qhold</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>qhold</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_108_16"></a>APPLICATION USAGE</h4><blockquote><p>None.</p></blockquote><h4><a name="tag_04_108_17"></a>EXAMPLES</h4><blockquote><p>None.</p></blockquote><h4><a name="tag_04_108_18"></a>RATIONALE</h4><blockquote><p>The <i>qhold</i> utility allows users to place a hold on one or more jobs. A hold makes a batch job ineligible forexecution.</p><p>The <i>qhold</i> utility has options that allow the user to specify the type of hold. Should the user wish to place a hold on aset of jobs that meet a selection criteria, such a list of jobs can be acquired using the <a href="../utilities/qselect.html"><i>qselect</i></a> utility.</p><p>The <b>-h</b> option allows the user to specify the type of hold that is to be placed on the job. This option allows for USER,SYSTEM, OPERATOR, and implementation-defined hold types. The USER and OPERATOR holds are distinct. The batch server that managesthe batch job will verify that the user is authorized to set the specified hold for the batch job.</p><p>Mail is not required on hold because the administrator has the tools and libraries to build this option if he or she wishes.</p><p>Historically, the <i>qhold</i> utility has been a part of some existing batch systems, although it has not traditionally been apart of the NQS.</p></blockquote><h4><a name="tag_04_108_19"></a>FUTURE DIRECTIONS</h4><blockquote><p>None.</p></blockquote><h4><a name="tag_04_108_20"></a>SEE ALSO</h4><blockquote><p><a href="xcu_chap03.html#tag_03"><i>Batch Environment Services</i></a> , <a href="qselect.html"><i>qselect</i></a></p></blockquote><h4><a name="tag_04_108_21"></a>CHANGE HISTORY</h4><blockquote><p>Derived from IEEE Std 1003.2d-1994.</p></blockquote><h4><a name="tag_04_108_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><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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