One Day One Command :-
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watch - Periodically run and show the output of a program
Summary:
Watch runs command repeatedly, displaying its output This allows
you to monitor the program output change over time.
Examples :-
$ watch ls -- Every 2sec(default time) 'ls' is executed and output
is showed on the screen.
$ watch -n 6 who -- Every 6Sec 'who' run and list the current users
$ watch -d date -- Highlight the difference b/w successive updates
Press Ctrl+C to stop the Watch Command.
Read: man watch
Wish you happy Pongal & Bye :)
--
Bharathi S