RE: System for naming graphics files

["Lauren" <lauren -at- writeco -dot- net>]

> From: Dan Goldstein

> The following command at the command prompt adds the current 
> date to all
> jpg files in the current directory that begin with "pic":
> 
> ren pic*.jpg "pic*%date:/=%.jpg"
> 
> So:
> 
> pic_pretty_sunset.jpg
> becomes
> pic_pretty_sunset.jpgThu 011509.jpg
> 
> pic_ugly_politician.jpg
> becomes
> pic_ugly_politician.jpgThu 011509.jpg
> 
> How could we turn that MMDDYY into YYYYMMDD, as David suggests below?

Try,

ren *.txt "*%date:~10,4%%date:~4,2%%date:~7,2%.txt"

"txt" of course is whatever extension you want to change.  Save this command
in a text file in the directory of the filenames to change and change the
extension "txt" to "cmd".  Run the command file, <whatever you called
it>.cmd, from the command prompt.  So for "test.cmd", enter "test" after the
command prompt.

A similar script can be made with time.  See,
http://www.jpsdomain.org/windows/winshell.html#date.

You should notice that the number after the tilde refers to the character
position in the date string and the number after the comma is the number of
digits before that position.  UNIX is so much better at handling strings and
scripts.

Lauren



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