General used cron jobs examples and Facebook/Twitter post cron jobs

General used cron jobs examples

and Facebook/Twitter PHP post cron jobs

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crontab -l   # list cron jobs 

crontab -e   # enter cron jobs

30 7 */2 * * /usr/bin/php /path/to/facebook_share.php | mail -s "Auto share results" you@your-email.com

more info here:

How to Auto Post on Facebook with PHP