proto.4 (2010 09)

p
proto(4) proto(4)
NAME
proto - prototype job file for at
SYNOPSIS
/var/adm/cron/.proto
/var/adm/cron/.proto.
queue
DESCRIPTION
When a job is submitted to
at or
batch, the job is constructed as a POSIX shell script (see at (1)). The
job file is created in
/var/spool/cron/atjobs
as follows:
•
at creates a header describing the job as an
at job or a batch job. at jobs submitted to all queues
other than queue
a are listed as
batch jobs. The header is:
:atjob for an at job, or
: batch job for a batch job.
• A set of POSIX shell commands is added to make the environment (see environ (5)) for the
at job the
same as the current environment.
•
at then copies text from the prototype file to the job file, except for special variables that are
replaced by other text:
$d Replaced by the current working directory.
$l Replaced by the current file size limit (see ulimit (2)).
$m Replaced by the current umask (see umask(2)).
$t Replaced by the time at which the job should be run, expressed as seconds since January 1,
1970, 00:00 Coordinated Universal Time, preceded by a colon.
$< Replaced by text read by at from the standard input (that is, the commands provided to
at
to be run in the job).
• When a job is submitted to queue queue,
at uses the file /var/adm/cron/.proto.
queue as the
prototype file if it exists. Otherwise, it uses the file
/var/adm/cron/.proto
.
EXAMPLES
The following
.proto file creates commands to change the current directory, file size limit, and umask
in the job to their respective values as they existed when at was originally run. These commands are
inserted before the commands in the job:
cd $d
ulimit $l
umask $m
$<
SEE ALSO
at(1), queuedefs(4).
STANDARDS CONFORMANCE
proto: SVID2, SVID3
HP-UX 11i Version 3: September 2010 − 1 − Hewlett-Packard Company 1