Commands you might have missed: watch
There are many times when it is useful to be able to repeatedly run a command, or set of commands, repeatedly. You could do this yourself with a simple shell script, but using watch makes it simple.In brief watch is a command which will repeatedly run a command for you - allowing you to watch updates in near real-time.The most basic example of using it would be to run this:
skx@teldra:~$ watch uptime