LINUX: Shell Script For Pinging Multiple IP Addresses / Hosts And Report Whether They Are UP or DOWN (How To Doc)

This article provides script which will ping multiple IP addresses / Hostnames and report if they are UP or down.

Below is the script content.

#!/bin/bash

# Program name: ping_multiple_ip_hosts.sh

echo "`date`" >>/tmp/result.out

cat /tmp/hosts |  while read output

do

    ping -c 1 "$output" > /dev/null

    if [ $? -eq 0 ]; then

    echo "node $output is up" >>/tmp/result.out

    else

    echo "node $output is down" >>/tmp/result.out

    fi

done

This script reads the IP addresses / hostnames from /tmp/hosts file. The IP addresses have to be light this in /tmp/hosts file with 1 IP or hostname per line.

10.10.10.10

10.10.10.20 

When the script is executed it redirects the output to /tmp/result.out file as follows. As you can see it prints date and whether the hosts are up or down.

Fri Aug 23 02:02:01 UTC 2019

node 10.10.10.10 is up

node 10.10.10.20 is up

Fri Aug 23 02:03:01 UTC 2019

node 10.10.10.10 is up

node 10.10.10.20 is up

Fri Aug 23 02:04:01 UTC 2019

node 10.10.10.10 is up

node 10.10.10.20 is up

Products to which Article Applies

All UNIX environments

Additional References

https://askubuntu.com/questions/413367/ping-multiple-ips-using-bash


 

tarun boyella