Format date/time string for a different day

date --date=yesterday +%Y%m%d
The "date' command has options to easily format the date, day, month, time, etc. But what if you want a relative date or time. Like, I wanted yesterday's date in a particular format. You may want the exact date of "2 months ago" or "-3 days" nicely formatted. For that, you can use this command. The --date option takes fuzzy parameters like the ones mentioned in the previous sentence.
Sample Output
me@my-laptop:~$ date
Wed Sep  8 17:55:57 IST 2010
me@my-laptop:~$ date --date=yesterday +%Y%m%d
20100907

2
By: vinayv
2010-09-08 12:29:31

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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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