Hack 10. Display Past Date and Time

by Ramesh

Following are various ways to display a past date and time:

$ date --date='3 seconds ago'
Thu Jan  1 08:27:00 PST 2009

$ date --date="1 day ago"
Wed Dec 31 08:27:13 PST 2008

$ date --date="1 days ago"
Wed Dec 31 08:27:18 PST 2008

$ date --date="1 month ago"
Mon Dec  1 08:27:23 PST 2008

$ date --date="1 year ago"
Tue Jan  1 08:27:28 PST 2008

$ date --date="yesterday"
Wed Dec 31 08:27:34 PST 2008

$ date --date="10 months 2 day ago"
Thu Feb 28 08:27:41 PST 2008
1 artickl September 22, 2013 at 2:33 pm

Some times is very useful to know the date of specific weekday, for example:
date -d “last friday” //date of last Friday from today
date -d “next friday” //date of next Friday from today

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