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

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  ser-
       vices.

       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 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 IEEE Std 1003.1-2001, Section 8.2, Inter-
	      nationalization Variables for 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 interna-
	      tionalization 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 argu-
	      ments).

       LC_MESSAGES
	      Determine the locale that should be used to affect the format and contents of diag-
	      nostic 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 IEEE Std 1003.1-2001 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  identi-
       fier".  In the broad sense, the network problem is also an error, which causes the failure
       to process the batch job identifier.

FUTURE DIRECTIONS
       None.

SEE ALSO
       Batch Environment Services , kill() , qselect , qsig

COPYRIGHT
       Portions of this text are reprinted and	reproduced  in	electronic  form  from	IEEE  Std
       1003.1,	2003  Edition,	Standard  for Information Technology -- Portable Operating System
       Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003  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 orig-
       inal Standard can be obtained online at http://www.opengroup.org/unix/online.html .

IEEE/The Open Group			       2003					  QDEL(P)
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