Ping an IP address or hostname in the Terminal for Mac OS X

Syntax: ping [-Options] <ip/hostname>

Usage: Ping's an IP-address or a hostname (which can be used to troubleshoot connection problems to another computer or a server).

Options

-c <num>	Stop after sending and receiving <num> number of packets.
-f	Flood ping: Flood ping, output packets as fast as they come back or 100 times per second.
-i <num>	Wait for <num> seconds between sending each packet.

Example

ping 127.0.0.1	Ping your own computer (localhost)
ping -c 10 google.se	Ping google.se and stop after 10 sent and received packages.

Quick tip: If you're using ping and the response keeps coming in without stopping. Hold down "Ctrl" and hit "Z" (Ctrl+Z) to abort.