Crontab on hourly basis

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http://www.unix.com – Hi.. I need to run the script on hourly basis. How do I write the crontab on hourly basis i.e, 9:00, 10:00.....22:00.. 23:00 hours Please let me know if the below is correct one for crontab on hourly basis. Code: 00 * * * * ksh myscript.ksh > /dev/null Regards, John (HowTos)