Stop that!

Sometimes it seems easier to start something from the command line than to stop it.  Ping, for instance.

To stop whatever you're running in the terminal, type:

Ctrl+c

That's it.

If the issue happens to be ping, you can do it preemptively, by limiting the number of pings.  Just use this command:

ping -c [number of pings you want]

as in:

ping -c 7 www.google.com