crontab一个很不错的工具
安装
# yum install crontabs
启动服务
# service crond start
重新载入配置
# service crond reload
重启
# service crond restart
停止
# service crond stop
设置开机启动
# chkconfig --level 35 crond on
查看是否成功
# ntsysv
配置参考Example 就好了
# cd /etc
# cat 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
但是不是直接编辑crontab
而是
# crontab -e
# */1 * * * * echo "hello world"
然就一分钟输出一次holle world
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