Date (Unix command): Difference between revisions

Revision as of 13:20, 3 May 2025

Revision as of 15:40, 3 May 2025

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The '''<code>date</code>''' command outputs the current or specified date and time and can also set the current system time. While available as a command line utility it is also used in [[Shell script|shell scripts]] to perform automated actions such as calculating the difference between different times, converting times between timezones, reformating timstamps in texts to fit different [[List of date formats by country|date presentation requirements]] and adding versioning information to backup and other files.<ref>{{cite book|last1=Nemeth|first1=Evi |last2=Snyder| first2=Garth |last3=Hein| first3=Trent | last4=Whaley| first4=Ben| title=UNIX and Linux System Administration Handbook| edition=4th | publisher=Prentice Hall|___location=New York|year=2011| isbn=978-0131-48005-6| pages=45,398}}</ref><ref>{{cite web| author=<!-- not stated --> | title=Formatting and Displaying Dates with Bash Scripts in Linux|date=Oct 22, 2023| url=https://www.squash.io/formatting-and-displaying-dates-with-bash-scripts-in-linux/ | website=www.squash.io| publisher=Squash Labs Inc|___location=Vancouver BC| access-date=Apr 28, 2025}}</ref>

==Option flags==

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{{Expand section|date=May 2025|further OS/shell examples}}

== History ==

David McKenzie is the author of the Linux version of date. The date command has been part of Unix since AT&T's original Version 1.<ref name=Kerrisk /><ref>{{cite web |author=<!-- not stated --> |date=September 10, 2024 |title=FreeBSD Manual Pages |url=https://man.freebsd.org/cgi/man.cgi?date |website=man.freebsd.org |access-date=April 1, 2025}}</ref>

==References Notes ==

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== References ==

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[[Category:Standard Unix programs]]