.htaccess redirect a subdomain to a main domain

Let’s say you have a blog on the sub domain blog.codexpedia.com, now you want to move it to the main domain www.codexpedia.com. For example, if people is visiting the url http://blog.codexpedia.com/java/java-merge-sort-implementation/, you want to redirect it to http://www.codexpedia.com/java/java-merge-sort-implementation/

Add this to the .htaccess file and put it in your web root directory of the old subdomian, in this case is blog.codexpedia.com.

RewriteEngine On
RewriteCond %{HTTP_HOST} ^blog\.codexpedia\.com  [NC]
RewriteRule ^(.*) http://www.codexpedia.com/$1 [L,R=301]

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