HP-UX Reference (11i v2 04/09) - 1M System Administration Commands A-M (vol 3)

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cron(1M) cron(1M)

02,4***Multiple_2

For the period of 1:00 a.m. to 4:00 a.m. on the days of DST transition, the results will be:

Job Times Run in Fall Times Run in Spring

Job_1 01:00 MDT 01:00 MST

Job_2 02:00 MDT 03:00 MDT

Job_3 03:00 MST 03:00 MDT

Job_4 04:00 MST 04:00 MDT

Job_hourly 01:00 MDT 01:00 MST

02:00 MDT

02:00 MST

03:00 MST 03:00 MDT

04:00 MST 04:00 MDT

Multiple_1 02:00 MDT

03:00 MST 03:00 MDT

04:00 MST 04:00 MDT

Multiple_2 02:00 MDT 03:00 MDT

04:00 MST 04:00 MDT

WARNINGS

In the Spring, when there is a nonexistent hour because of daylight savings time, a command that is

scheduled to run multiple times during the nonexistent hour will only be run once. For example, a com-

mand scheduled to run at 2:00 and 2:30 a.m. in the

MST7MDT time zone will only run at 3:00 a.m. The

command that was scheduled at 2:30 a.m. will not be run at all, instead of running at 3:30 a.m.

DEPENDENCIES

HP Process Resource Manager

If the optional HP Process Resource Management (PRM) software is installed and conﬁgured, jobs are

launched in the initial process resource group of the user that scheduled the job. The user’s initial group

is determined at the time the job is started, not when the job is scheduled. If the user’s initial group is

not deﬁned, the job runs in the user default group (

PRMID=1). See prmconﬁg(1) for a description of how

to conﬁgure HP PRM, and prmconf(4) for a description of how the user’s initial process resource group is

determined.

AUTHOR

cron was developed by AT&T and HP.

FILES

/var/adm/cron Main cron directory

/var/spool/cron/atjobs

Directory containing at and batch job ﬁles

/var/spool/cron/crontabs

Directory containing crontab ﬁles

/var/adm/cron/log

Accounting information