增加定时任务
[root@hdp05 etc]# vi 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
30 2 * * * root /usr/bin/bbksql_backup backup /data/mysql_backup backup backup 3306 /home/social/my.cnf
*/1 * * * * root /bin/sh /home/crontable/add_partition.sh
0 * * * 1 root /bin/sh /home/crontable/del_partition.sh
,sh 文件可以根据自己习惯放在哪个位置。
查看日志 ：
[root@hdp05 etc]# tail -f /var/log/cron
重启：
[root@hdp05 etc]# service crond restart;
状态：
[root@node4 data]# service crond status;
开始：
[root@node4 data]# service crond start;
结束：
[root@node4 data]# service crond stop;