Section: POSIX Programmer's Manual (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.
--- 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
utility is a user-accessible batch client that requests the signaling
of a batch job.
utility shall signal those batch jobs for which a batch
is presented to the utility. The
utility shall not signal any batch jobs whose batch
are not presented to the utility.
utility shall signal batch jobs in the order in which the corresponding
are presented to the utility. If the
utility fails to process a batch
successfully, the utility shall proceed to process the remaining batch
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
utility shall have received a completion reply to each
Signal Job Request
sent to a batch server at the time the utility exits.
utility shall conform to the Base Definitions volume of POSIX.1-2017,
, Utility Syntax Guidelines.
The following option shall be supported by the implementation:
- -s signal
Define the signal to be sent to the batch job.
utility shall accept a
option-argument that is either a symbolic signal name or an unsigned
integer signal number (see the POSIX.1-1990 standard, Section 220.127.116.11). The
utility shall accept signal names for which the SIG prefix has been
option-argument is a signal name, the
utility shall send that name.
option-argument is a number, the
utility shall send the signal value represented by the number.
option is not presented to the
utility, the utility shall send the signal SIGTERM to each signaled
utility shall accept one or more operands that conform to the syntax
for a batch
, Batch Job Identifier).
The following environment variables shall affect the execution of
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.)
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
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:
An error occurred.
CONSEQUENCES OF ERRORS
In addition to the default behavior, the
utility shall not be required to write a diagnostic message to standard
error when the error reply received from a batch server indicates that
does not exist on the server. Whether or not the
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.
utility allows users to signal batch jobs.
A user may be unable to signal a batch job with the
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
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
utility is not a substitute for the
The options of the
utility allow the user to specify the signal that is to be sent to the
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
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
utility may be removed in a future version.
, Batch Environment Services,
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
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