1QDEL(P) POSIX Programmer's Manual QDEL(P)
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6 qdel - delete batch jobs
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9 qdel job_identifier ...
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12 A batch job is deleted by sending a request to the batch server that
13 manages the batch job. A batch job that has been deleted is no longer
14 subject to management by batch services.
15 The qdel utility is a user-accessible client of batch services that
17 requests the deletion of one or more batch jobs.
18 The qdel utility shall request a batch server to delete those batch
20 jobs for which a batch job_identifier is presented to the utility.
21 The qdel utility shall delete batch jobs in the order in which their
23 batch job_identifiers are presented to the utility.
24 If the qdel utility fails to process any batch job_identifier success‐
26 fully, the utility shall proceed to process the remaining batch
27 job_identifiers, if any.
28 The qdel utility shall delete each batch job by sending a Delete Job
30 Request to the batch server that manages the batch job.
31 The qdel utility shall not exit until the batch job corresponding to
33 each successfully processed batch job_identifier has been deleted.
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36 None.
37
39 The qdel utility shall accept one or more operands that conform to the
40 syntax for a batch job_identifier (see Batch Job Identifier ).
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43 Not used.
44
46 None.
47
49 The following environment variables shall affect the execution of qdel:
50 LANG Provide a default value for the internationalization variables
52 that are unset or null. (See the Base Definitions volume of
53 IEEE Std 1003.1-2001, Section 8.2, Internationalization Vari‐
54 ables for the precedence of internationalization variables used
55 to determine the values of locale categories.)
56 LC_ALL If set to a non-empty string value, override the values of all
58 the other internationalization variables.
59 LC_CTYPE
61 Determine the locale for the interpretation of sequences of
62 bytes of text data as characters (for example, single-byte as
63 opposed to multi-byte characters in arguments).
64 LC_MESSAGES
66 Determine the locale that should be used to affect the format
67 and contents of diagnostic messages written to standard error.
68 LOGNAME
70 Determine the login name of the user.
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74 Default.
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77 An implementation of the qdel utility may write informative messages to
78 standard output.
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81 The standard error shall be used only for diagnostic messages.
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84 None.
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87 None.
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90 The following exit values shall be returned:
91 0 Successful completion.
93 >0 An error occurred.
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98 In addition to the default behavior, the qdel utility shall not be
99 required to write a diagnostic message to standard error when the error
100 reply received from a batch server indicates that the batch job_identi‐
101 fier does not exist on the server. Whether or not the qdel utility
102 waits to output the diagnostic message while attempting to locate the
103 job on other servers is implementation-defined.
104 The following sections are informative.
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108 None.
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111 None.
112
114 The qdel utility allows users and administrators to delete jobs.
115 The qdel utility provides functionality that is not otherwise avail‐
117 able. For example, the kill utility of the operating system does not
118 suffice. First, to use the kill utility, the user might have to log in
119 on a remote node, because the kill utility does not operate across the
120 network. Second, unlike qdel, kill cannot remove jobs from queues.
121 Lastly, the arguments of the qdel utility are job identifiers rather
122 than process identifiers, and so this utility can be passed the output
123 of the qselect utility, thus providing users with a means of deleting a
124 list of jobs.
125 Because a set of jobs can be selected using the qselect utility, the
127 qdel utility has not been complicated with options that provide for
128 selection of jobs. Instead, the batch jobs to be deleted are identified
129 individually by their job identifiers.
130 Historically, the qdel utility has been a component of NQS, the exist‐
132 ing practice on which it is based. However, the qdel utility defined in
133 this volume of IEEE Std 1003.1-2001 does not provide an option for
134 specifying a signal number to send to the batch job prior to the
135 killing of the process; that capability has been subsumed by the qsig
136 utility.
137 A discussion was held about the delays of networking and the possibil‐
139 ity that the batch server may never respond, due to a down router, down
140 batch server, or other network mishap. The DESCRIPTION records this
141 under the words "fails to process any job identifier". In the broad
142 sense, the network problem is also an error, which causes the failure
143 to process the batch job identifier.
144
146 None.
147
149 Batch Environment Services , kill() , qselect , qsig
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152 Portions of this text are reprinted and reproduced in electronic form
153 from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
154 -- Portable Operating System Interface (POSIX), The Open Group Base
155 Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
156 Electrical and Electronics Engineers, Inc and The Open Group. In the
157 event of any discrepancy between this version and the original IEEE and
158 The Open Group Standard, the original IEEE and The Open Group Standard
159 is the referee document. The original Standard can be obtained online
160 at http://www.opengroup.org/unix/online.html .
161IEEE/The Open Group 2003 QDEL(P)