Shell實現判斷程序是否存在並重新啟動指令碼分享

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簡潔版:


#! /bin/bash
# author caoxin
# time 2012-10-10 
# program : 判斷進行是否存在,並重新啟動
function check(){
count=`ps -ef |grep $1 |grep -v "grep" |wc -l`
#echo $count
if [ 0 == $count ];then
nohup python /runscript/working/$1 &
fi
}
check behaviors.py

詳細版:


#!/bin/bash
#
#呼叫關閉jboss程序指令碼
stopMethodServer.sh
#列印出當前的jboss程序:grep jboss查詢的jboss程序,grep -v "grep" 去掉grep程序
jmsThread=`ps -ef | grep gdms | grep jboss | grep -v "grep"`
echo $jmsThread
#查詢jboss程序個數:wc -l 返回行數
count=`ps -ef | grep gdms | grep jboss | grep -v "grep" | wc -l`
echo $count
sec=7
#開始一個迴圈,以判斷程序是否關閉
for var in 1 2
do
if [ $count -gt 0 ]; then
#若程序還未關閉,則指令碼sleep幾秒
echo sleep $sec second the $var time, the JMS thread is still alive
sleep $sec
else
#若程序已經關閉,則跳出迴圈
echo "break"
break
fi
done
#if [ $count -eq 0 ]; then
# echo "nohup startMethodServer.sh &"
# nohup startMethodServer.sh &
#else
# echo "It's better to check the thread!!!"
#fi
#呼叫啟動指令碼
nohup startMethodServer.sh &

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