/sbin/service crond start //启动服务
/sbin/service crond stop //关闭服务
/sbin/service crond restart //重启服务
/sbin/service crond reload //重新载入配置

    $ crontab -e 添加 （用户）
    $ crontab -l 查看服务
      chmod 777 filename 赋予全部权限

/etc/init.d/crond restart   重启服务


    rsync -av meididi/ /soft/tomcat7/webapps/meididi 更新项目


    service mysqld restart  重启mysql
    /etc/rc.d/init.d/mysql stop 停止mysql
    /etc/rc.d/init.d/mysql start 启动mysql
    tar -zxvf **.tar.gz搜索 可加-C 命令指定解压目录



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
# |  |  |  |  |
# *  *  *  *  * sleep 10;  echo "Have a good dream：）" >> /tmp/test.txt
  45 14 *  *  *  /bin/sh /root/dstj.sh  >> /root/mysqldata/dstj.log 2>&1
  59 23 6  *  *  /bin/sh /root/hhh.sh
  45 14 *  *  *  /bin/sh /root/mysqlbak.sh >> /root/mysqldata/mysqlbak.log 2>&1
  10 11 7  12  *  /bin/sh /root/myhhh.sh  #10分11小时7号12月执行