examples/etc/cron.d/berta
# Cron job running by default every six hours.
# The lock file can be enabled or disabled via:
#
# service berta-cron start
# chkconfig berta-cron on
#
# Note that the lock file not existing is a success (and
# over-all success is needed in order to prevent error
# messages from cron).
30 */6 * * * berta [ ! -f /var/lock/berta-cron ] || /usr/bin/berta