[NTLUG:Discuss] Simple way to repeat command every 'x' seconds

[Richard Geoffrion]

Jack Snodgrass wrote:
> I want to be able to do something like
> do forever
>    du -H -s
>    sleep 20 seconds
> loop
> 
> from the command line with a simple command. Is there something
> already out there that does this, or do I have to write a script?
> 

while true; do du -H -s ; sleep 20 ; done

the SIMPLE route.  Just hit ctrl-c to exit.

-Richard