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Full Discussion: Problem with pipes on infinite streams
Top Forums Shell Programming and Scripting Problem with pipes on infinite streams Post 302420343 by jim mcnamara on Tuesday 11th of May 2010 10:55:17 AM
Old 05-11-2010
it is from bash job control - see the 'advanced bash scripting guide' online
Quote:
Job number n may be referred to as ‘%n’. The symbols ‘%%’ and ‘%+’ refer to the shell's notion of the current job, which is the last job stopped while it was in the foreground or started in the background. A single ‘%’ (with no accompanying job specification) also refers to the current job. The previous job may be referenced using ‘%-’. If there is only a single job, ‘%+’ and ‘%-’ can both be used to refer to that job. In output pertaining to jobs (e.g., the output of the jobs command), the current job is always flagged with a ‘+’, and the previous job with a ‘-’.

A job may also be referred to using a prefix of the name used to start it, or using a substring that appears in its command line. For example, ‘%ce’ refers to a stopped ce job. Using ‘%?ce’, on the other hand, refers to any job containing the string ‘ce’ in its command line. If the prefix or substring matches more than one job, Bash reports an error.
I believe it is not part of POSIX, just a bash extension.
This User Gave Thanks to jim mcnamara For This Post:
chebarbudo
 

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LEARN ABOUT PLAN9

qstat

QSTAT(1)						User Contributed Perl Documentation						  QSTAT(1)

NAME

       qstat - display job/partition information in a familiar pbs format

SYNOPSIS

       qstat [-f] [-a|-i|-r] [-n [-1]] [-G|-M] [-u user_list] [-? | --help] [--man] [job_id...]

       qstat -Q [-f]

       qstat -q

DESCRIPTION

       The qstat command displays information about jobs.

OPTIONS

       -a  Displays all jobs in a single-line format. See the STANDARD OUTPUT section for format details.

       -i  Displays information about idle jobs. This includes jobs which are queued or held.

       -f  Displays the full information for each selected job in a multi-line format. See the STANDARD OUTPUT section for format details.

       -G  Display size information in gigabytes.

       -M  Show size information, disk or memory in mega-words.  A word is considered to be 8 bytes.

       -n  Displays nodes allocated to a job in addition to the basic information.

       -1  In combination with -n, the -1 option puts all of the nodes on the same line as the job id.

       -r  Displays information about running jobs. This includes jobs which are running or suspended.

       -u user_list
	   Display job information for all jobs owned by the specified user(s). The format of user_list is: user_name[,user_name...].

       -? | --help
	   brief help message

       --man
	   full documentation

STANDARD OUTPUT

       Displaying Job Status

       If the -a, -i, -f, -r, -u, -n, -G, and -M options are not specified, the brief single-line display format is used. The following items are
       displayed on a single line, in the specified order, separated by white space:

       the job id
       the job name
       the job owner
       the cpu time used
       the job state
	   C -	Job is completed after having run E -  Job is exiting after having run.  H -  Job is held.  Q -  job is queued, eligible to run or
	   routed.  R -  job is running.  T -  job is being moved to new location.  W -  job is waiting for its execution time (-a option) to be
	   reached.  S -  job is suspended.

       the queue that the job is in

       If the -f option is specified, the multi-line display format is used. The output for each job consists of the header line: Job Id:  job
       identifier followed by one line per job attribute of the form: attribute_name = value

       If any of the options -a, -i, -r, -u, -n, -G or -M are specified, the normal single-line display format is used. The following items are
       displayed on a single line, in the specified order, separated by white space:

       the job id
       the job owner
       the queue the job is in
       the job name
       the session id (if the job is running)
       the number of nodes requested by the job
       the number of cpus or tasks requested by the job
       the amount of memory requested by the job
       either the cpu time, if specified, or wall time requested  by the job, (in hh:mm)
       the job state
       The amount of cpu time or wall time used by the job (in hh:mm)

EXIT STATUS

       On success, qstat will exit with a value of zero. On failure, qstat will exit with a value greater than zero.

perl v5.14.2							    2012-04-10								  QSTAT(1)
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