Is it possible to have more than one Cron in shell script?

Yamini Thoppen · #1 (**permalink**) 12-14-2007

Hi,

can we have more than one cron in the shell script? If so pls let me know on what basis it is running. Whether on OS scheduling or the time scheduled in the cron file.Pls answer this query.

Many Thanks

Kundunni · #2 (**permalink**) 12-16-2007

cron is the scheduler. The runs the jobs by referring the table crontab. Or you can schedule the jobs via "at"
We can have only one cron demon running on the server. However we can use other schedulers on the same server like cosbatch, autosys etc

porter · #3 (**permalink**) 12-16-2007

Each user gets a crontab, each crontab can have a number of entries.

Each entry has a date/time specification and a command to run.

Only one cron process is required, it spawns child processes and runs the commands as required.

Yamini Thoppen · #4 (**permalink**) 12-17-2007

Quote:

Originally Posted by Kundunni

cron is the scheduler. The runs the jobs by referring the table crontab. Or you can schedule the jobs via "at"
We can have only one cron demon running on the server. However we can use other schedulers on the same server like cosbatch, autosys etc

Hi Kundunni,

Thanks for you reply. Hence it is only one cron containing many crontabs on the server and it is not related to the operating system.

Yamini Thoppen · #5 (**permalink**) 12-17-2007

Quote:

Originally Posted by porter

Each user gets a crontab, each crontab can have a number of entries.

Each entry has a date/time specification and a command to run.

Only one cron process is required, it spawns child processes and runs the commands as required.

Hi Porter,

Thanks for your reply.

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