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

       qsig - signal batch jobs

       qsig [-s signal] job_identifier ...

       To  signal a batch job is to send a signal to the session leader of the
       batch job. A batch job is signaled by sending a request  to  the  batch
       server  that manages the batch job. The qsig utility is a user-accessi-
       ble batch client that requests the signaling of a batch job.

       The qsig utility shall signal  those  batch  jobs  for  which  a  batch
       job_identifier  is presented to the utility. The qsig utility shall not
       signal any batch jobs whose batch job_identifiers are not presented  to
       the utility.

       The qsig utility shall signal batch jobs in the order in which the cor-
       responding batch job_identifiers are presented to the utility.  If  the
       qsig  utility fails to process a batch job_identifier successfully, the
       utility shall proceed to process the remaining  batch  job_identifiers,
       if any.

       The  qsig  utility  shall  signal  batch  jobs  by sending a Signal Job
       Request to the batch server that manages the batch job.

       For each successfully processed batch job_identifier, the qsig  utility
       shall  have received a completion reply to each Signal Job Request sent
       to a batch server at the time the utility exits.

       The qsig utility shall  conform  to  the  Base  Definitions  volume  of
       IEEE Std 1003.1-2001, Section 12.2, Utility Syntax Guidelines.

       The following option shall be supported by the implementation:

       -s  signal
              Define the signal to be sent to the batch job.

       The qsig utility shall accept a signal option-argument that is either a
       symbolic signal name or an unsigned  integer  signal  number  (see  the
       POSIX.1-1990 standard, Section  The qsig utility shall accept
       signal names for which the SIG prefix has been omitted.

       If the signal option-argument is a signal name, the qsig utility  shall
       send that name.

       If  the signal option-argument is a number, the qsig utility shall send
       the signal value represented by the number.

       If the -s option is not presented to  the  qsig  utility,  the  utility
       shall send the signal SIGTERM to each signaled batch job.

       The  qsig utility shall accept one or more operands that conform to the
       syntax for a batch job_identifier (see Batch Job Identifier ).

       Not used.


       The following environment variables shall affect the execution of qsig:

       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,  Internationalization Vari-
              ables 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 internationalization variables.

              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).

              Determine the locale that should be used to  affect  the  format
              and contents of diagnostic messages written to standard error.

              Determine the login name of the user.


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

       The standard error shall be used only for diagnostic messages.



       The following exit values shall be returned:

        0     Successful completion.

       >0     An error occurred.

       In addition to the default behavior, the  qsig  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_identi-
       fier  does  not  exist  on  the server. Whether or not the qsig utility
       waits to output the diagnostic message while attempting to  locate  the
       batch job on other servers is implementation-defined.

       The following sections are informative.



       The qsig utility allows users to signal batch jobs.

       A user may be unable to signal a batch job with the kill utility of the
       operating system for a number of reasons. First, the process ID of  the
       batch  job  may  be  unknown  to the user. Second, the processes of the
       batch job may be on a remote node. However, by virtue of  communication
       between  batch nodes, the qsig utility can arrange for the signaling of
       a process.

       Because a batch job that is not running cannot be signaled, and because
       the  signal  may not terminate the batch job, the qsig utility is not a
       substitute for the qdel utility.

       The options of the qsig utility allow the user to  specify  the  signal
       that is to be sent to the batch job.

       The  -s  option  allows users to specify a signal by name or by number,
       and thus override the default signal. The POSIX.1-1990 standard defines
       signals by both name and number.

       The  qsig utility is a new utility, vis-a-vis existing practice; it has
       been defined in this volume  of  IEEE Std 1003.1-2001  in  response  to
       user-perceived shortcomings in existing practice.


       Batch Environment Services , kill() , qdel

       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 original Standard can be  obtained  online
       at .

IEEE/The Open Group                  2003                              QSIG(P)

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