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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
qstat — show status of batch jobs
SYNOPSIS
qstat [−f] job_identifier...
qstat −Q [−f] destination...
qstat −B [−f] server_name...
DESCRIPTION
The status of a batch job, batch queue, or batch server is obtained by a request to the
server. The qstat utility is a user-accessible batch client that requests the status of
one or more batch jobs, batch queues, or servers, and writes the status information to
standard output.
For each successfully processed batch job_identifier, the qstat utility shall display
information about the corresponding batch job.
For each successfully processed destination, the qstat utility shall display information
about the corresponding batch queue.
For each successfully processed server name, the qstat utility shall display information
about the corresponding server.
The qstat utility shall acquire batch job status information by sending a Job Status
Request to a batch server. The qstat utility shall acquire batch queue status information
by sending a Queue Status Request to a batch server. The qstat utility shall acquire
server status information by sending a Server Status Request to a batch server.
OPTIONS
The qstat utility shall conform to the Base Definitions volume of POSIX.1‐2008, Section
12.2, Utility Syntax Guidelines.
The following options shall be supported by the implementation:
−f Specify that a full display is produced.
The minimum contents of a full display are specified in the STDOUT section.
Additional contents and format of a full display are implementation-defined.
−Q Specify that the operand is a destination.
The qstat utility shall display information about each batch queue at each
destination identified as an operand.
−B Specify that the operand is a server name.
The qstat utility shall display information about each server identified as an
operand.
OPERANDS
If the −Q option is presented to the qstat utility, the utility shall accept one or more
operands that conform to the syntax for a destination (see Section 3.3.2, Destination).
If the −B option is presented to the qstat utility, the utility shall accept one or more
server_name operands.
If neither the −B nor the −Q option is presented to the qstat utility, the 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 qstat:
HOME Determine the pathname of the user's home directory.
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_COLLATE
Determine the locale for the behavior of ranges, equivalence classes, and multi-
character collating elements within regular expressions.
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.
LC_NUMERIC
Determine the locale for selecting the radix character used when writing
floating-point formatted output.
ASYNCHRONOUS EVENTS
Default.
STDOUT
If an operand presented to the qstat utility is a batch job_identifier and the −f option
is not specified, the qstat utility shall display the following items on a single line, in
the stated order, with white space between each item, for each successfully processed
operand:
* The batch job_identifier
* The batch job name
* The Job_Owner attribute
* The CPU time used by the batch job
* The batch job state
* The batch job location
If an operand presented to the qstat utility is a batch job_identifier and the −f option
is specified, the qstat utility shall display the following items for each success fully
processed operand:
* The batch job_identifier
* The batch job name
* The Job_Owner attribute
* The execution user ID
* The CPU time used by the batch job
* The batch job state
* The batch job location
* Additional implementation-defined information, if any, about the batch job or batch
queue
If an operand presented to the qstat utility is a destination, the −Q option is specified,
and the −f option is not specified, the qstat utility shall display the following items on
a single line, in the stated order, with white space between each item, for each
successfully processed operand:
* The batch queue name
* The maximum number of batch jobs that shall be run in the batch queue concurrently
* The total number of batch jobs in the batch queue
* The status of the batch queue
* For each state, the number of batch jobs in that state in the batch queue and the name
of the state
* The type of batch queue (execution or routing)
If the operands presented to the qstat utility are destinations, the −Q option is
specified, and the −f option is specified, the qstat utility shall display the following
items for each successfully processed operand:
* The batch queue name
* The maximum number of batch jobs that shall be run in the batch queue concurrently
* The total number of batch jobs in the batch queue
* The status of the batch queue
* For each state, the number of batch jobs in that state in the batch queue and the name
of the state
* The type of batch queue (execution or routing)
* Additional implementation-defined information, if any, about the batch queue
If the operands presented to the qstat utility are batch server names, the −B option is
specified, and the −f option is not specified, the qstat utility shall display the
following items on a single line, in the stated order, with white space between each item,
for each successfully processed operand:
* The batch server name
* The maximum number of batch jobs that shall be run in the batch queue concurrently
* The total number of batch jobs managed by the batch server
* The status of the batch server
* For each state, the number of batch jobs in that state and the name of the state
If the operands presented to the qstat utility are server names, the −B option is
specified, and the −f option is specified, the qstat utility shall display the following
items for each successfully processed operand:
* The server name
* The maximum number of batch jobs that shall be run in the batch queue concurrently
* The total number of batch jobs managed by the server
* The status of the server
* For each state, the number of batch jobs in that state and the name of the state
* Additional implementation-defined information, if any, about the server
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 qstat 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
qstat 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 qstat utility allows users to display the status of jobs and list the batch jobs in
queues.
The operands of the qstat utility may be either job identifiers, queues (specified as
destination identifiers), or batch server names. The −Q and −B options, or absence
thereof, indicate the nature of the operands.
The other options of the qstat utility allow the user to control the amount of information
displayed and the format in which it is displayed. Should a user wish to display the
status of a set of jobs that match a selection criteria, the qselect utility may be used
to acquire such a list.
The −f option allows users to request a ``full'' display in an implementation-defined
format.
Historically, the qstat utility has been a part of the NQS and its derivatives, the
existing practice on which it is based.
FUTURE DIRECTIONS
The qstat utility may be removed in a future version.
SEE ALSO
Chapter 3, Batch Environment Services, qselect
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
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 .