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PROLOG | NAME | SYNOPSIS | DESCRIPTION | OPTIONS | OPERANDS | STDIN | INPUT FILES | ENVIRONMENT VARIABLES | ASYNCHRONOUS EVENTS | STDOUT | STDERR | OUTPUT FILES | EXTENDED DESCRIPTION | EXIT STATUS | CONSEQUENCES OF ERRORS | APPLICATION USAGE | EXAMPLES | RATIONALE | FUTURE DIRECTIONS | SEE ALSO | COPYRIGHT |
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QSIG(1P) POSIX Programmer's Manual QSIG(1P)
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.
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-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.
The qsig utility shall conform to the Base Definitions volume of
POSIX.1‐2017, 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.
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).
Not used.
None.
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.1‐2017, 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.
Default.
An implementation of the qsig utility may write informative
messages to standard output.
The standard error shall be used only for diagnostic messages.
None.
None.
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.
None.
None.
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.1‐2017 in response to
user-perceived shortcomings in existing practice.
The qsig utility may be removed in a future version.
Chapter 3, Batch Environment Services, kill(1p), qdel(1p)
The Base Definitions volume of POSIX.1‐2017, Chapter 8,
Environment Variables, Section 12.2, Utility Syntax Guidelines
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 QSIG(1P)
Pages that refer to this page: qdel(1p)
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HTML rendering created 2025-02-02 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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