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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

       qsig — signal batch jobs

SYNOPSIS

       qsig [−s signal] job_identifier...

DESCRIPTION

       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-accessible 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 corresponding 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.

OPTIONS

       The  qsig  utility  shall  conform to the Base Definitions volume of POSIX.1‐2008, 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 3.3.1.1). 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.

OPERANDS

       The qsig 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 qsig:

       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.

ASYNCHRONOUS EVENTS

       Default.

STDOUT

       An implementation of the qsig 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 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_identifier 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.

APPLICATION USAGE

       None.

EXAMPLES

       None.

RATIONALE

       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  POSIX.1‐2008  in  response  to  user-perceived  shortcomings  in  existing
       practice.

FUTURE DIRECTIONS

       The qsig utility may be removed in a future version.

SEE ALSO

       Chapter 3, Batch Environment Services, kill, qdel

       The  Base  Definitions  volume  of POSIX.1‐2008, Chapter 8, Environment Variables, Section
       12.2, Utility Syntax Guidelines

COPYRIGHT

       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
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       such errors, see https://www.kernel.org/doc/man-pages/reporting_bugs.html .