Update: Now that it's 2016 I'd use PowerShell for this unless there's a really compelling backwards-compatible reason for it, particularly because of the regional settings issue with using
date. See @npocmaka's https://stackoverflow.com/a/19799236/8479
What's a Windows command line statement(s) I can use to get the current datetime in a format that I can put into a filename?
I want to have a .bat file that zips up a directory into an archive with the current date and time as part of the name, for example,
Code_2008-10-14_2257.zip. Is there any easy way I can do this, independent of the regional settings of the machine?
I don't really mind about the date format, ideally it'd be yyyy-mm-dd, but anything simple is fine.
So far I've got this, which on my machine gives me
rem Get the datetime in a format that can go in a filename.
set _my_datetime=%_my_datetime: =_%
rem Now use the timestamp by in a new ZIP file name.
"d:\Program Files\7-Zip\7z.exe" a -r Code_%_my_datetime%.zip Code
I can live with this, but it seems a bit clunky. Ideally it'd be briefer and have the format mentioned earlier.
I'm using Windows Server 2003 and Windows XP Professional. I don't want to install additional utilities to achieve this (although I realise there are some that will do nice date formatting).