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PROLOG

       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

       qdel — delete batch jobs

SYNOPSIS

       qdel job_identifier...

DESCRIPTION

       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

       None.

OPERANDS

       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

       Not used.

INPUT FILES

       None.

ENVIRONMENT VARIABLES

       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

       Default.

STDOUT

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

STDERR

       The standard error shall be used only for diagnostic messages.

OUTPUT FILES

       None.

EXTENDED DESCRIPTION

       None.

EXIT STATUS

       The following exit values shall be returned:

        0    Successful completion.

       >0    An error occurred.

CONSEQUENCES OF ERRORS

       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

       None.

EXAMPLES

       None.

RATIONALE

       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

       The qdel utility may be removed in a future version.

SEE ALSO

       Chapter 3, Batch Environment Services, kill, qselect, qsig

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

COPYRIGHT

       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(1POSIX)