while true; do date; sleep 1; done

Display an updating clock in sh variants

Handy if all you have is a console session or tty.
Sample Output
$ while true; do date; sleep 1; done
Mon Mar 23 15:42:52 PDT 2009
Mon Mar 23 15:42:53 PDT 2009
Mon Mar 23 15:42:54 PDT 2009
Mon Mar 23 15:42:55 PDT 2009
Mon Mar 23 15:42:56 PDT 2009

0
By: cbetts
2009-03-23 22:44:59

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What Others Think

Better way: while clear; do date && sleep 1; done or if you prefer scrolling: while date; do sleep 1; done
isaacs · 478 weeks ago
watch date # hah! 10 characters :-)
mpb · 478 weeks ago
Slick! I mostly run Solaris, so watch has to be added on. Like the while clear approach though.
cbetts · 478 weeks ago
watch -n 1 date #can't wait a second for the time/date:)
Williebee · 478 weeks ago
Why are people voting up trivial commands like this? I have yet to understand that.
ozymandias · 478 weeks ago
What's the point of this command? Why would I want to sit at a terminal watching my date timestamp? I certainly have better things to do with my time.
atoponce · 478 weeks ago
atoponce -- I think the point was to see how trivial of a command they could come up with.
ozymandias · 478 weeks ago
watch -n 1 true or while true; do echo -en "\033[0G"; echo -n `date`; sleep 1; done
decasm · 477 weeks and 3 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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