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QDEL(1P) POSIX Programmer's Manual QDEL(1P)
This manual page is part of the POSIX Programmer's Manual. The Linux
implementation of this interface may differ (consult the
corresponding Linux manual page for details of Linux behavior), or
the interface may not be implemented on Linux.
qdel — delete batch jobs
qdel job_identifier...
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 is no longer
subject to management by batch services.
The qdel utility is a user-accessible client of batch services that
requests the deletion of one or more batch jobs.
The qdel utility shall request a batch server to delete those batch
jobs for which a batch job_identifier is presented to the utility.
The qdel utility shall delete batch jobs in the order in which their
batch job_identifiers are presented to the utility.
If the qdel utility fails to process any batch job_identifier
successfully, the utility shall proceed to process the remaining
batch job_identifiers, if any.
The qdel utility shall delete each batch job by sending a Delete Job
Request to the batch server that manages the batch job.
The qdel utility shall not exit until the batch job corresponding to
each successfully processed batch job_identifier has been deleted.
None.
The qdel utility shall accept one or more operands that conform to
the syntax for a batch job_identifier (see Section 3.3.1, Batch Job
Identifier).
Not used.
None.
The following environment variables shall affect the execution of
qdel:
LANG Provide a default value for the internationalization
variables that are unset or null. (See the Base Definitions
volume of POSIX.1‐2008, Section 8.2, Internationalization
Variables the precedence of internationalization variables
used to determine the values of locale categories.)
LC_ALL If set to a non-empty string value, override the values of
all the other internationalization variables.
LC_CTYPE Determine the locale for the interpretation of sequences of
bytes of text data as characters (for example, single-byte
as opposed to multi-byte characters in arguments).
LC_MESSAGES
Determine the locale that should be used to affect the
format and contents of diagnostic messages written to
standard error.
LOGNAME Determine the login name of the user.
Default.
An implementation of the qdel utility may write informative messages
to standard output.
The standard error shall be used only for diagnostic messages.
None.
None.
The following exit values shall be returned:
0 Successful completion.
>0 An error occurred.
In addition to the default behavior, the qdel utility shall not be
required to write a diagnostic message to standard error when the
error reply received from a batch server indicates that the batch
job_identifier does not exist on the server. Whether or not the qdel
utility waits to output the diagnostic message while attempting to
locate the job on other servers is implementation-defined.
The following sections are informative.
None.
None.
The qdel utility allows users and administrators to delete jobs.
The qdel utility provides functionality that is not otherwise
available. For example, the kill utility of the operating system does
not suffice. First, to use the kill utility, the user might have to
log in on a remote node, because the kill utility does not operate
across the network. Second, unlike qdel, kill cannot remove jobs from
queues. Lastly, the arguments of the qdel utility are job identifiers
rather than process identifiers, and so this utility can be passed
the output of the qselect utility, thus providing users with a means
of deleting a list of jobs.
Because a set of jobs can be selected using the qselect utility, the
qdel utility has not been complicated with options that provide for
selection of jobs. Instead, the batch jobs to be deleted are
identified individually by their job identifiers.
Historically, the qdel utility has been a component of NQS, the
existing practice on which it is based. However, the qdel utility
defined in this volume of POSIX.1‐2008 does not provide an option for
specifying a signal number to send to the batch job prior to the
killing of the process; that capability has been subsumed by the qsig
utility.
A discussion was held about the delays of networking and the
possibility that the batch server may never respond, due to a down
router, down batch server, or other network mishap. The DESCRIPTION
records this under the words ``fails to process any job identifier''.
In the broad sense, the network problem is also an error, which
causes the failure to process the batch job identifier.
The qdel utility may be removed in a future version.
Chapter 3, Batch Environment Services, kill(1p), qselect(1p),
qsig(1p)
The Base Definitions volume of POSIX.1‐2008, Chapter 8, Environment
Variables
Portions of this text are reprinted and reproduced in electronic form
from IEEE Std 1003.1, 2013 Edition, Standard for Information
Technology -- Portable Operating System Interface (POSIX), The Open
Group Base Specifications Issue 7, Copyright (C) 2013 by the
Institute of Electrical and Electronics Engineers, Inc and The Open
Group. (This is POSIX.1-2008 with the 2013 Technical Corrigendum 1
applied.) In the event of any discrepancy between this version and
the original IEEE and The Open Group Standard, the original IEEE and
The Open Group Standard is the referee document. The original
Standard can be obtained online at http://www.unix.org/online.html .
Any typographical or formatting errors that appear in this page are
most likely to have been introduced during the conversion of the
source files to man page format. To report such errors, see
https://www.kernel.org/doc/man-pages/reporting_bugs.html .
IEEE/The Open Group 2013 QDEL(1P)
Pages that refer to this page: qalter(1p), qselect(1p), qsig(1p)