My 2 paisas

a shell script to check if a ipaddress is taken using ping

Posted on: November 12, 2009

With the help of Abhas Bhaiyya, I could write this shell script which checks if an ipaddress can be pinged.

#!/bin/sh

if [ `ping -c1 192.168.31.31 >/dev/null; echo $?` -eq 1 ]
then
echo “not able to ping”
fi

/dev/null is used here so that the output of the ping command is not compared with 1.
$? gives out the return code of the command.

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