If you are using *nix, then you can white your watching-logic as usual perl program, and then launch it via : 

 watch my-script.pl my-arg1 my-arg2

[download]

By default, watch re-launches the program every 2 seconds, and clears the screen.

In reply to Re: run command every x seconds by basiliscos
in thread run command every x seconds by amboxer21

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