bash shell 检查网络
#!/bin/bash# Simple SHELL script for Linux and UNIX system monitoring with# ping command# -------------------------------------# Copyright (c) 2006 nixCraft project <http://www.cyberciti.biz/fb/># This script is licensed under GNU GPL version 2.0 or above# -------------------------------------# This script is part of nixCraft shell script collection (NSSC)# Visit http://bash.cyberciti.biz/ for more information.# -------------------------------------# Setup email ID below# See URL for more info:# http://www.cyberciti.biz/tips/simple-linux-and-unix-system-monitoring-with-ping-command-and-scripts.html# -------------------------------------?# add ip / hostname separated by white spaceHOSTS="cyberciti.biz theos.in router"?# no ping requestCOUNT=1?# email report whenSUBJECT="Ping failed"EMAILID="me@mydomain.com"for myHost in $HOSTSdo count=$(ping -c $COUNT $myHost | grep 'received' | awk -F',' '{ print $2 }' | awk '{ print $1 }') if [ $count -eq 0 ]; then # 100% failed echo "Host : $myHost is down (ping failed) at $(date)" | mail -s "$SUBJECT" $EMAILID fidonehttp://bash.cyberciti.biz/monitoring/monitor-windows-linux-server-with-ping-script/