1.安装crontab
yum install crontabs
2.编辑定时任务:
vim /etc/crontab
3.路径要写绝对路径
# 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
#每晚20点执行
0 20 * * * root /opt/deploy/restart-report.sh
#每分钟执行一次
*/1 * * * * root mkdir /root/test-crontab
# 每分钟执行一次
* * * * * root /bin/date >> /root/crontab-date.txt
#每个小时的第05分时执行一次
5 * * * * root python /home/xxx.py
4.重启服务
systemctl restart crond