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

NAME

       qsig - signal batch jobs

SYNOPSIS

       qsig [-s signal] job_identifier ...

DESCRIPTION

       To signal a batch job is to send a signal to the session leader of the batch job. A batch job is signaled by sending a request to the batch
       server that manages the batch job. The qsig utility is a user-accessible batch client that requests the signaling of a batch job.

       The qsig utility shall signal those batch jobs for which a batch job_identifier is presented to the utility. The  qsig  utility	shall  not
       signal any batch jobs whose batch job_identifiers are not presented to the utility.

       The qsig utility shall signal batch jobs in the order in which the corresponding batch job_identifiers are presented to the utility. If the
       qsig utility fails to process a batch job_identifier successfully, the utility shall proceed to process	the  remaining	batch  job_identi-
       fiers, if any.

       The qsig utility shall signal batch jobs by sending a Signal Job Request to the batch server that manages the batch job.

       For  each  successfully	processed batch job_identifier, the qsig utility shall have received a completion reply to each Signal Job Request
       sent to a batch server at the time the utility exits.

OPTIONS

       The qsig 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:

       -s  signal
	      Define the signal to be sent to the batch job.

       The qsig utility shall accept a signal option-argument that is either a symbolic signal name or an unsigned integer signal number (see  the
       POSIX.1-1990 standard, Section 3.3.1.1).  The qsig utility shall accept signal names for which the SIG prefix has been omitted.

       If the signal option-argument is a signal name, the qsig utility shall send that name.

       If the signal option-argument is a number, the qsig utility shall send the signal value represented by the number.

       If the -s option is not presented to the qsig utility, the utility shall send the signal SIGTERM to each signaled batch job.

OPERANDS

       The qsig 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 qsig:

       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, Internationalization 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 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.

ASYNCHRONOUS EVENTS

       Default.

STDOUT

       An implementation of the qsig utility may write informative messages to standard output.

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 qsig 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 qsig 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 qsig utility allows users to signal batch jobs.

       A user may be unable to signal a batch job with the kill utility of the operating system for a number of reasons. First, the process ID	of
       the  batch job may be unknown to the user. Second, the processes of the batch job may be on a remote node. However, by virtue of communica-
       tion between batch nodes, the qsig utility can arrange for the signaling of a process.

       Because a batch job that is not running cannot be signaled, and because the signal may not terminate the batch job, the qsig utility is not
       a substitute for the qdel utility.

       The options of the qsig utility allow the user to specify the signal that is to be sent to the batch job.

       The  -s	option	allows	users  to  specify  a signal by name or by number, and thus override the default signal. The POSIX.1-1990 standard
       defines signals by both name and number.

       The qsig utility is a new utility, vis-a-vis existing practice; it has been defined in this volume of IEEE Std 1003.1-2001 in  response	to
       user-perceived shortcomings in existing practice.

FUTURE DIRECTIONS

       None.

SEE ALSO

       Batch Environment Services , kill() , qdel

COPYRIGHT

       Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technol-
       ogy -- 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 .

IEEE
/The Open Group						       2003								   QSIG(P)