Display a future or past date in the bash shell

Here’s a quick and easy way to establish what the date will be in a specific number of days from today using the bash shell on Linux. Simply use the ‘-d’ option to the ‘date’ command.

Here’s the current timestamp:

-bash-3.2$ date
Thu Jan 17 15:04:28 GMT 2013

And this will be the date 60 days from now:

-bash-3.2$ date -d "now 60 days"
Mon Mar 18 15:04:31 GMT 2013

You can also use the same code to display dates from past. What was the date 94 days ago?

-bash-3.2$ date -d "now -94 days"
Mon Oct 15 15:07:35 GMT 2012

To get the last calendar day of the previous month:

date -d "-$(date +%d) day" +%Y-%m-%d

(Display the date days ago. So on 17 January, 17 days ago would be 31 December)

Leave a Reply

Your email address will not be published. Required fields are marked *

Please complete the captcha below to leave a comment * Time limit is exhausted. Please reload the CAPTCHA.