shell實戰之：用shell實現squid守護進程

shell實戰之：用shell實現squid守護進程 01用shell實現squid守護進程02每兩分鐘檢測一下squid服務狀態，如果squid服務不在了，則啟動，達到守護的目的03指令碼如下：04#!/bin/sh05#code by scpman06#mail:scpman@Live.com07#Blog:http://www.scpman.com08msgip="10.0.1.111"09IP=`cat /etc/rc.conf | grep -E "ifconfig_[em1|bce1]" | awk '{print "IP:"$2}'| sed -n 1p `10check_squid()11{12rs_flag=`ps uaxww | grep squid|grep -v grep | wc -l`13if [ "$rs_flag" -gt 0 ]14then15        echo 'squid server is running..'16        exit;17else18        echo 'squid server is not running...'19        /usr/local/squid/sbin/squid -z20        /usr/local/squid/sbin/squid -D21        /usr/bin/logger -p local1.info -h $msgip "the services: $IP squid will to start by watch_squid.sh "22        sleep 123        check_squid24fi25}26check_squid27每兩分鐘用定時實現，如果要1分鐘檢查一次，就是* * * * *了28定時如下29*/2 * * * * su - root -c "/usr/home/admin/mgr_shell/watch_squid.sh"