linux-date-command-cheatsheet.md

aliases	category	classification	date	date_modified	draft	id	image	links	local_archive_links	pinned	print	series	tags	title	type
linux-date-command-cheatsheet	cli	public	2020-10-13 12:02:22 -0700	2020-10-13 12:02:22 -0700	false	20201013190222				false	false		date linux shell	Linux Date Command	tech-note

Commands

date --set="23:59:58"                       # Set the system time.
date --set="2020-10-17"                     # Set the system date.
date --date=@1593966863                     # Convert from specifed Epoch time.
date --date=@1593964977 +"%Y%m%d%H%M%S"     # Convert from specified Epoch time to specific format.
date +%s -d "Jan 1, 1980 00:00:01"          # Convert from human readable to Epoch.

Functions

Print out Concurrent Date's

I use this for my plain-text calendar. Update the START and END date variables, and then you have a list of dates you can use.

#!/bin/bash
START="2021-01-01"
for i in {1..365}; do
    # custom format using +
    date '+%Y-%m-%d %a' -d "$START +$i days"
done