Checking Connection Via Ping using Bash

Create bash file on the /tmp (you can put anywhere), this is just an example.

$ touch /tmp/ping.sh

added this code inside it

#!/bin/bash
ip=192.168.110.33
ping -c 3 $ip > result
grep 100% result > /dev/null
if [ $? = 0 ]
        # result dari $? kalau 0 artinya tidak output grep di screen
        # artinya, grep tidak mendapatkan apa yang di cari
        # dalam hal ini grep mencari 100% packet loss (host yg off)
        #
        then
        echo "Host off"
        else
        echo "Host on"
fi

Make sure the script has permission to execute

$ chmod +x ping.sh

Test it !

$ sh ping.sh

Result is "Host on" it mean the computer you try to check is a live.

Host on

else computer you try to check is off

Host off

Done