[cobalt-users] [raq2] Any crontab experts?

["Tony" <isplists@xxxxxxxxxxxx>]

I have a mental block with cron.
What time values & format would I need to put in a crontab file to execute
this command every 30 minutes between the hours
of 8am and 11pm every day of the month?

perl -w /home/sites/siteX/cgi-bin/script.pl >
/home/sites/siteX/web/news/news.html


I had this: 1,31 8-23,0-2 * * * but it gave me a bad day-of-month error.