Linux scheduled reboot

 

1. Install the crontab
yum the install cixie-cron 
yum the install crontabs
   
2, edit cron
first step, login ID
the second step, the input crontab -e
third step, the input i to enter edit mode
a fourth step, 6:00 every automatic restart: 0 6 * * * reboot
the fifth step, press esc to exit edit mode sixth step, shift + :, then type wq, forced to save
the restart service crond restart command

 

Reboot * * * 2 0    
(0 day 2 represents two o'clock restart .. 03 .. indicates 3:00)

Reboot 2 * * * 06  
(06 daily 2 represents two six restart .. 063 represents 3:00 minutes .. 6)

Reboot. 4 * * * 0  
(0. 4 indicates four o'clock every day restart .. 03 .. indicates 3:00)

 

3. Basic command
service crond start // start the service
service crond stop // close the service
service crond restart // restart the service

 

View chkconfig --list
to view the cron startup information, if 2.3.4.5 item is off, enter the following command chkconfig crond on

 

4. chestnuts
# half hour to perform a file
* / 30 * * * * /opt/test/restart.bash

 

# One minute to perform a file
* / 1 * * * * /opt/test/restart.bash