1. Use the following code
Redirect permanent /folder http://www.abc.com/newfolder
From the above code, you can redirect a url such as “www.abc.com/folder” to a new destination as “www.abc.com/newfolder”. You can modify it according to your requirements.
2. Open the .htaccess file found in “/public_html” directory and copy the code and paste it above # END WordPress, found at last.
There are more ways of modifying a redirect but we like to do things in a simple way.