A batch job might have one or more holds, which prevent the batch job from
executing. A batch job from which all the holds have been removed becomes
eligible for execution and is said to have been released. A batch job hold is
removed by sending a request to the batch server that manages the batch job.
The qrls utility is a user-accessible client of batch services that
requests holds be removed from one or more batch jobs.
The qrls utility shall remove one or more holds from those batch jobs for
which a batch job_identifier is presented to the utility.
The qrls utility shall remove holds from batch jobs in the order in which
their batch job_identifiers are presented to the utility.
If the qrls utility fails to process a batch job_identifier
successfully, the utility shall proceed to process the remaining batch
job_identifiers, if any.
The qrls utility shall remove holds on each batch job by sending a
Release Job Request to the batch server that manages the batch job.
The qrls utility shall not exit until the holds have been removed from
the batch job corresponding to each successfully processed batch
The qrls utility shall conform to the Base Definitions volume of
IEEE Std 1003.1-2001, Section 12.2, Utility Syntax Guidelines.
The following option shall be supported by the implementation:
Define the types of holds to be removed from the batch
The qrls-h option shall accept a value for the hold_list
option-argument that is a string of alphanumeric characters in the portable
character set (see the Base Definitions volume of
IEEE Std 1003.1-2001, Section 6.1, Portable Character Set).
The qrls utility shall accept a value for the hold_list
option-argument that is a string of one or more of the characters 'u' ,
's' , or 'o' , or the single character 'n' .
For each unique character in the hold_list option-argument, the
qrls utility shall add a value to the Hold_Types attribute of
the batch job as follows, each representing a different hold type:
If any of these characters are duplicated in the hold_list
option-argument, the duplicates shall be ignored.
An existing Hold_Types attribute can be cleared by the following hold
The qrls utility shall consider it an error if any hold type other than
'n' is combined with hold type 'n' .
Strictly conforming applications shall not repeat any of the characters
'u' , 's' , 'o' , or 'n' within the
hold_list option-argument. The qrls utility shall permit the
repetition of characters, but shall not assign additional meaning to the
An implementation may define other hold types. The conformance document for an
implementation shall describe any additional hold types, how they are
specified, their internal behavior, and how they affect the behavior of the
If the -h option is not presented to the qrls utility, the
implementation shall remove the USER hold in the Hold_Types attribute.
The following environment variables shall affect the execution of qrls:
Provide a default value for the internationalization
variables that are unset or null. (See the Base Definitions volume of
IEEE Std 1003.1-2001, Section 8.2, Internationalization
Variables for 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.
In addition to the default behavior, the qrls 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 qrls utility waits to
output the diagnostic message while attempting to locate the job on other
servers is implementation-defined.
The following sections are informative.
The qrls utility allows users, operators, and administrators to remove
holds from jobs.
The qrls utility does not support any job selection options or wildcard
arguments. Users may acquire a list of jobs selected by attributes using the
qselect utility. For example, a user could select all of their held
The -h option allows the user to specify the type of hold that is to be
removed. This option allows for USER, SYSTEM, OPERATOR, and
implementation-defined hold types. The batch server that manages the batch job
will verify whether the user is authorized to remove the specified hold for
the batch job. If more than one type of hold has been placed on the batch job,
a user may wish to remove only some of them.
Mail is not required on release because the administrator has the tools and
libraries to build this option if required.
The qrls utility is a new utility vis-a-vis existing practice; it
has been defined in this volume of IEEE Std 1003.1-2001 as the
natural complement to the qhold utility.
Portions of this text are reprinted and reproduced in electronic form from IEEE
Std 1003.1, 2003 Edition, Standard for Information Technology -- Portable
Operating System Interface (POSIX), The Open Group Base Specifications Issue
6, Copyright (C) 2001-2003 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