编辑添加定时任务:
crontab -e
vi /etc/crontab
查看定时任务:crontab -l
$ cat /etc/crontab
SHELL=/bin/bash
PATH=/sbin:/bin:/usr/sbin:/usr/bin
MAILTO=root
HOME=/
# For details see man 4 crontabs
# Example of job definition:
# .---------------- minute (0 - 59)
# | .------------- hour (0 - 23)
# | | .---------- day of month (1 - 31)
# | | | .------- month (1 - 12) OR jan,feb,mar,apr ...
# | | | | .---- day of week (0 - 6) (Sunday=0 or 7) OR sun,mon,tue,wed,thu,fri,sat
# | | | | |
# * * * * * user-name command to be executed
查看crontab定时任务是否执行:
tail -f /var/log/cron
定时任务重启、停止、状态
service /etc/init.d/crond restart、stop、status
开机就启动cron进程的设置命令:
chkconfig --add crond