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QHOLD(P)			    POSIX Programmer's Manual				 QHOLD(P)

NAME
       qhold - hold batch jobs

SYNOPSIS
       qhold [-h hold_list] job_identifier ...

DESCRIPTION
       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 util-
       ity  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 correspond-
       ing to each successfully processed batch job_identifier.

OPTIONS
       The qhold 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:

       -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 IEEE Std 1003.1-2001, 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 differ-
       ent 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 implementa-
       tion  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.

OPERANDS
       The qhold utility shall accept one or more operands that conform to the syntax for a batch
       job_identifier (see Batch Job Identifier ).

STDIN
       Not used.

INPUT FILES
       None.

ENVIRONMENT VARIABLES
       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 IEEE Std 1003.1-2001, Section 8.2, Inter-
	      nationalization Variables for 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 interna-
	      tionalization 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 argu-
	      ments).

       LC_MESSAGES
	      Determine the locale that should be used to affect the format and contents of diag-
	      nostic messages written to standard error.

       LOGNAME
	      Determine the login name of the user.

ASYNCHRONOUS EVENTS
       Default.

STDOUT
       None.

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 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.

APPLICATION USAGE
       None.

EXAMPLES
       None.

RATIONALE
       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.

FUTURE DIRECTIONS
       None.

SEE ALSO
       Batch Environment Services , qselect

COPYRIGHT
       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 orig-
       inal Standard can be obtained online at http://www.opengroup.org/unix/online.html .

IEEE/The Open Group			       2003					 QHOLD(P)
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