date format linux

date format linux

I was working with an Automated Scripting which will generate reports and mail the User.

I want the script to  run at every day Morning by 8:00 AM.

I wanted the log file to be created and the name should be the date time when the script started to run.

Say for example, I  run the script today ( 30 Dec 2014, 5:50 PM). Hence I
want the name of the log file as

30_12_14_17_50_00.log

I chosed the script as

date +"%d_%m_%y_%T" | tr ":" "_"

Where,


%d -> Date
%m -> Month
%y -> Year
%T -> Current Time in 24 Hour Format

tr is a command utility to find and replaces string / character inline.

tr ":" "_" means, replace ":" with "_".

I got the  documentation of the date command here, which was helpful.

http://www.cyberciti.biz/faq/linux-unix-formatting-dates-for-display/