|
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 |
QHOLD(1P) POSIX Programmer's Manual QHOLD(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.
qhold — hold batch jobs
qhold [−h hold_list] job_identifier...
A hold is placed on a batch job by a request to the batch server that
manages the batch job. A batch job that has one or more holds is not
eligible for execution. The qhold utility is a user-accessible client
of batch services that requests one or more types of hold to be
placed on one or more batch jobs.
The qhold utility shall place holds on those batch jobs for which a
batch job_identifier is presented to the utility.
The qhold utility shall place holds on batch jobs in the order in
which their batch job_identifiers are presented to the utility. If
the qhold utility fails to process any batch job_identifier
successfully, the utility shall proceed to process the remaining
batch job_identifiers, if any.
The qhold utility shall place holds on each batch job by sending a
Hold Job Request to the batch server that manages the batch job.
The qhold utility shall not exit until holds have been placed on the
batch job corresponding to each successfully processed batch
job_identifier.
The qhold utility shall conform to the Base Definitions volume of
POSIX.1‐2008, Section 12.2, Utility Syntax Guidelines.
The following option shall be supported by the implementation:
−h hold_list
Define the types of holds to be placed on the batch job.
The qhold −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 POSIX.1‐2008, Section 6.1, Portable Character
Set).
The qhold 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 qhold utility shall add a value to the Hold_Types
attribute of the batch job as follows, each representing a
different hold type:
u USER
s SYSTEM
o OPERATOR
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 type:
n NO_HOLD
The qhold 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 qhold utility shall permit the
repetition of characters, but shall not assign additional
meaning to the repeated characters.
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
utility.
If the −h option is not presented to the qhold utility, the
implementation shall set the Hold_Types attribute to USER.
The qhold 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
qhold:
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_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.
None.
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 qhold 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 qhold
utility waits to output the diagnostic message while attempting to
locate the job on other servers is implementation-defined.
The following sections are informative.
None.
None.
The qhold utility allows users to place a hold on one or more jobs. A
hold makes a batch job ineligible for execution.
The qhold utility has options that allow the user to specify the type
of hold. Should the user wish to place a hold on a set of jobs that
meet a selection criteria, such a list of jobs can be acquired using
the qselect utility.
The −h option allows the user to specify the type of hold that is to
be placed on the job. This option allows for USER, SYSTEM, OPERATOR,
and implementation-defined hold types. The USER and OPERATOR holds
are distinct. The batch server that manages the batch job will verify
that the user is authorized to set the specified hold for the batch
job.
Mail is not required on hold because the administrator has the tools
and libraries to build this option if he or she wishes.
Historically, the qhold utility has been a part of some existing
batch systems, although it has not traditionally been a part of the
NQS.
The qhold utility may be removed in a future version.
Chapter 3, Batch Environment Services, qselect(1p)
The Base Definitions volume of POSIX.1‐2008, Section 6.1, Portable
Character Set, 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, 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 .
IEEE/The Open Group 2013 QHOLD(1P)
Pages that refer to this page: qalter(1p), qrls(1p)