pinging an ip

Hi,

How to ping an ip from an unix machine. Can you please let me know the exact command. I used and i got the below error

ping 171.18.17.2
bash: ping: command not found

Thanks n regards
Ammu

either you use the complete path for ping or add the directory where ping is available to your $PATH

ping should be usually available @ /bin/ping or /usr/sbin/ping