Unix tips
From PC2wiki
This article is a collection of Unix tips and tricks.
date
The -d option provides a way to specify dats in the past or future.
print ms ms 2:20 from now
date -d "2 hours 20 minutes" +%s
print regular time format 2:20 from now
date -d "2 hours 20 minutes"
print ms for 10/23 at 17:00
date -d "10/23 17:00" +%s