shell實現簡單的進程監控（watchdog）

#!/bin/bashNAME=javaNOP=/bin/trueDATE=$(/bin/date +"%Y-%m-%d %H:%M:%S")ps -ef | awk -F " " '{print $8,$2}' | grep ^java >/dev/null 2>&1case "$?" in0)# It is running in this case so we do nothing.echo "$NAME is RUNNING OK. Relax."$NOP;;1)echo "$NAME is NOT RUNNING. Starting $NAME and sending notices."java -jar sms.jar  2>&1 >/dev/null &NOTICE=/tmp/watchdog.logecho "$NAME was not running and was started on $DATE" >> $NOTICEesacexit 0

一個簡單的需求：shell實現進程監控watchdog功能，配合計劃任務每分鐘執行一次shell指令碼，對進程進行監控，如果意外中斷那麼啟動他，如果正常則什麼都不需要去做。

本文出自 “老徐的私房菜” 部落格，謝絕轉載！