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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 .
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