Alex.
# Run the 'atrun' program every 5 minutes
# This runs anything that's due to run from 'at'. See man 'at' or 'atrun'.
#0,5,10,15,20,25,30,35,40,45,50,55 * * * * /usr/lib/atrun
# This touches a filename in the temp directory so that you can see cron is
# working if the timestamp is current. Comment it out if it bugs you. :^)
# * * * * * touch /tmp/.crond_running
# This updates the database for 'locate' every day:
#40 07 * * * updatedb
0,5,10,15,20,25,30,35,40,45,50,55 * * * * /usr/local/bin/chown-apache