what would be the code in .htacess

I want to redirect urls. I have 100 of this articles.

Current url of one article is http://example.com/001-article-first-post.php
URL to be redirect is http://example.com/category/first-post

What would be the code in .htaccess file

Thanks in advance.

 

No one could write that? or not possible to write that?

 

Place this code in your .htaccess file:

redirect 301 /old/old.htm http://www.you.com/new.htm

Code (markup):