shell脚本：定时重启tomcat服务

1.编写test.sh脚本，脚本如下：

#!/bin/sh
export JAVA_HOME=/usr/java/jdk1.6.0_26

pid=`ps -auxww|grep tomcat|grep -v grep|awk '{print $2}'`

echo $pid

if [ -n "$pid" ];

then

{

echo "==========tomcat is start============"

'/usr/server/tomcat-7.0.27/bin/shutdown.sh'

sleep 5

'/usr/server/tomcat-7.0.27/bin/shutdown.sh'

sleep 15

pid=`ps -auxww|grep tomcat|grep -v grep|awk '{print $2}'`

if [ -n "$pid" ];

then

{

echo "======to kill the tomcat pid $pid========"

kill $pid

sleep 3

}

fi

echo "==========start tomcat============"

'/usr/server/tomcat-7.0.27/bin/startup.sh'

}

else

{

echo "==========tomcat is stop=====start======="

'/usr/server/tomcat-7.0.27/bin/startup.sh'

}

fi

2.在新建任务计划：利用crontab -e命令，于02:00执行重启服务

10 02 * * * /usr/server/tomcat-7.0.27/bin/startup.sh

3.启动定时服务

[root@]# service crond stop

[root@]# service crond start

4.查看该任务是否在定时列表里面：

[root@]# crontab -l

10 02 * * * /usr/server/tomcat-7.0.27/bin/startup.sh