qdel(1p) — Linux manual page

PROLOG | NAME | SYNOPSIS | DESCRIPTION | OPTIONS | OPERANDS | STDIN | INPUT FILES | ENVIRONMENT VARIABLES | ASYNCHRONOUS EVENTS | STDOUT | STDERR | OUTPUT FILES | EXTENDED DESCRIPTION | EXIT STATUS | CONSEQUENCES OF ERRORS | APPLICATION USAGE | EXAMPLES | RATIONALE | FUTURE DIRECTIONS | SEE ALSO | COPYRIGHT

QDEL(1P)                POSIX Programmer's Manual               QDEL(1P)

PROLOG         top

       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.

NAME         top

       qdel — delete batch jobs

SYNOPSIS         top

       qdel job_identifier...

DESCRIPTION         top

       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.

OPTIONS         top

       None.

OPERANDS         top

       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).

STDIN         top

       Not used.

INPUT FILES         top

       None.

ENVIRONMENT VARIABLES         top

       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.1‐2017, 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.

ASYNCHRONOUS EVENTS         top

       Default.

STDOUT         top

       An implementation of the qdel utility may write informative
       messages to standard output.

STDERR         top

       The standard error shall be used only for diagnostic messages.

OUTPUT FILES         top

       None.

EXTENDED DESCRIPTION         top

       None.

EXIT STATUS         top

       The following exit values shall be returned:

        0    Successful completion.

       >0    An error occurred.

CONSEQUENCES OF ERRORS         top

       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.

APPLICATION USAGE         top

       None.

EXAMPLES         top

       None.

RATIONALE         top

       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.1‐2017 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.

FUTURE DIRECTIONS         top

       The qdel utility may be removed in a future version.

SEE ALSO         top

       Chapter 3, Batch Environment Services, kill(1p), qselect(1p),
       qsig(1p)

       The Base Definitions volume of POSIX.1‐2017, Chapter 8,
       Environment Variables

COPYRIGHT         top

       Portions of this text are reprinted and reproduced in electronic
       form from IEEE Std 1003.1-2017, Standard for Information
       Technology -- Portable Operating System Interface (POSIX), The
       Open Group Base Specifications Issue 7, 2018 Edition, Copyright
       (C) 2018 by the Institute of Electrical and Electronics
       Engineers, Inc and The Open Group.  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.opengroup.org/unix/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               2017                          QDEL(1P)

Pages that refer to this page: qalter(1p)qselect(1p)qsig(1p)