#!/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 space HOSTS="cyberciti.biz theos.in router" # no ping request COUNT=1 # email report when SUBJECT="Ping failed" EMAILID="me@mydomain.com" for myHost in $HOSTS do count=$(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 fi done
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{ 37 comments… read them below or add one }
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I get error:
: integer expression expectedcom/ping/ping.sh: line 24: [: 0
help
Great lil script.
Does exactly what I need to monitor my home connection.
Thankyou very much.
Check out Nagios
Nagios is over the top here
if [ $count -eq 0 ] || [ -z "$count" ]; then
if [ ${count:-0} -eq 0 ] || [ -z "$count" ]; then
I got “-eq: unary operator expected” with the original script…
Really cool script! It saved time =)
Thanks to author
How can I put this script on my dd-wrt router so it sends me alerts when one of the pc goes down? I don’t how to make run from my router. any suggestions.
Thanks
thanks for posting it. saved me time.
you should use like this if[[ ${count:-0} -eq 0 ] || [ -z "$count" ]]
Quick question:
If I set the ping count to 4 and only one of four will failed will I get the true positive alarm anyway?
#!/bin/bash
# add ip / hostname separated by white space
HOSTS=”YOU CAN ADD MULTIPLE IP’S HERE”
# no ping request
COUNT=1
for myHost in $HOSTS;
do
count=`ping -c $COUNT $myHost | grep ‘received’ | awk -F’,’ ‘{ print $2 }’ | awk ‘{ print $1 }’`
if [ $count -eq 0 ]
then
echo $myHost “WHAT EVER YOU WANT OUTPUT TO SAY”
else
echo $myHost “WHAT EVER YOU WANT OUTPUT TO SAY”
fi
done
The “then” statement between quotes is what will be displayed if online
The “else” statement between quotes is what will be displayed if not online
Hi Lewcipher,
From the below script if any ping goes down it immediately throws a mail. But how to configure this script if ping is (okay) it should shoot a mail that all are okay.
Can u please help me.
# add ip / hostname separated by white space
HOSTS=”cyberciti.biz theos.in router”
# no ping request
COUNT=1
# email report when
SUBJECT=”Ping failed”
EMAILID=”me@mydomain.com”
for myHost in $HOSTS
do
count=$(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
fi
done
Regards,
Aryan
I welcome! Prompt me as to adjust this script on constant repetition if ping is ok? If no ping send 1 msg and exit? cron not to offer.
Hi,
In this script while executing we get multiple mails for multiple servers mentioned how to get all server details in one single mail which loop should i remove in this
N00b talking: How do i get my box with crunchbang on it get to email the notification? The script runs tĥrough, but it doesnt email, because my smtp requires authentification. (im not able to make the script pass this auth.)
Thanx a lot for help, using this for monitoring a big Wireless system with lots of ips.(nonprofit)
Awesome post.
Please also share that how to restart a server using unix.
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