crontab

30 04 * * * /usr/local/php5/bin/php
分 时 日 月 周

00 10,20 * * * /usr/local/php5/bin/php
10点整
20点整


crontrab -e


# Every 6m Run, 10
#*/6 9,10,16 01-28 02 * /home/sh/cront_1.sh &


# Every 2m Run ,30
*/2 17 01-31 05 * /home/sh/cront_1.sh &


# Every 1m Run ,180
*/1 9,10,19 01-31 05 * /home/sh/cront_1.sh &


# Every 1m Run ,840
*/1 11,12,13,15,16,18,20 01-31 05 * /home/sh/cront_2.sh &


# Every 1m Run ,240
*/1 14 01-31 05 * /home/sh/cront_4.sh &


crontab 重启
/etc/init.d/crond restart