Linux crontab Scheduled Task settings (simple knot)

Command:

Crontab-l View the currently running scheduled tasks

CRONTAB-E Edit current Run scheduled task modify or add

Press the I key to enter the edit text state, ESC ends the edit state: Wq save exit.

To configure the execution period:

* * * * * command

Time-sharing Weekly command

The 1th column represents minutes 1~59 per minute with * or */1
The 2nd column represents the hour 1~23 (0 means 0 points) //Example: * 6 * * * command means 6 points per day; * */6 * * * command means every 6 hours;
The 3rd column represents the date 1~31
The 4th column represents the month 1~12
5th Column Identification Number Week 0~6 (0 = Sunday)
6th List of commands to run

Some examples of crontab files:

* * * * */usr/local/etc/rc.d/lighttpd restart
　　The above example shows a 21:30 restart lighttpd per night.

4 1,10,22 * */USR/LOCAL/ETC/RC.D/LIGHTTPD restart
　　The above example shows a 4:45 restart lighttpd per month for 1, 10, 22nd.

1 * * 6,0/USR/LOCAL/ETC/RC.D/LIGHTTPD restart
　　The above example shows a 1:10 restart lighttpd per Saturday and Sunday.

0,30 18-23 * * */usr/local/etc/rc.d/lighttpd restart
　　The example above shows that LIGHTTPD restarts every 30 minutes from 18:00 to 23:00 every day.

0 * * 6/USR/LOCAL/ETC/RC.D/LIGHTTPD restart
　　The above example shows the restart of lighttpd per Saturday.

　　　　　　

Linux crontab Scheduled Task settings (simple knot)