Repeat a command every x seconds

Say you wanted to see whenever the content of a folder changes – what to do? Easy! Use the watch command:

watch 'ls -l'

This will clear the screen and output the contents of the command and update it every 2 seconds (clearing screen before each update). The watch command works for most scripts and commands

Tip: Using Tmux and the watch command together can help you create a really cool window with a bunch of “live” updated small windows

Tested on RHEL 3

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