qsig(1p) — Linux manual page


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

       qsig — signal batch jobs

SYNOPSIS         top

       qsig [−s signal] job_identifier...

DESCRIPTION         top

       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         top

       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
        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         top

       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

STDIN         top

       Not used.

INPUT FILES         top



       The following environment variables shall affect the execution of

       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).

                 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.



STDOUT         top

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

STDERR         top

       The standard error shall be used only for diagnostic messages.

OUTPUT FILES         top




EXIT STATUS         top

       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_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.



EXAMPLES         top


RATIONALE         top

       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.


       The qsig utility may be removed in a future version.

SEE ALSO         top

       Chapter 3, Batch Environment Services, kill(1p), qdel(1p)

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

COPYRIGHT         top

       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 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                 2013                            QSIG(1P)

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