how to add a day to date in bash?
For example, I have date: 4 August 1993 and I want to add 348 days to it, how can I do it in bash?
Just use the date command with -d option:
$ date -d "1983-08-04 348 days"
Tue Jul 17 00:00:00 BST 1984
You can change the output format if you want:
$ date -d "1983-08-04 2 days" +%Y-%m-%d
1983-08-06
In bash on Mac OS X, you can do this:
date -j -v +348d -f "%Y-%m-%d" "1993-08-04" +%Y-%m-%d
Output: 1994-07-18