Linux下添加任务计划，计划内容以sh文件表示

yum install crontabs

cd /opt

touch pro_some.sh

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#!/bin/bash

ls >> /root/result.txt

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chmod +x ./pro_some.sh

crontab -e

*/1 * * * * (不行的话在这里加个root当前用户名试下) /opt/pro_some.sh //1分钟执行一次

service crond restart

http://blog.csdn.net/kenhins/article/details/49360637

http://www.cnblogs.com/fazo/p/5531179.html

http://blog.csdn.net/ethanzhao/article/details/4406017