Redirection for blog post

There is a blog post that I want to redirect to different URL.
I like to know to redirect to another blog post URL.

Do I have to change any code in .htaccess???

e.g.
If old blog post URL: www.yoursite.com/blogs/entry/old   -> redirect to www.yoursite.com/blogs/entry/new
When redirect setting is complated, I want to delete old blog post.

Is there any one know how figure this out?

I like to know witch .htaccess file I have to modify.

Why not just edit the old blog post to make it contain the new content?  Problem solved.

hi,

Content is same but URL of old post is www.yoursite.com/blogs/entry/test.

I have changed blog title but URL will not change.

old post URL is looks not cool so that's why I want to change.

I guess I really don't understand the issue.  Perhaps this is about being indexed in a search engine so that you want when someone comes in from outside your site following a link, say found in Google or Bing, the old blog post will redirect to the new blog post?  If so, then I can understand the need.  If this is internal only, then you could work in the database; backup first of course.  Or, you could just create a new blog post and delete the old one; if you want the date to be the same as the old, then you change in the database (I think blog post date is stored as Unix timestamp, so you use a free tool on the net to create the proper timestamp)