Incase if you want to restructure website url, we have to redirect the URL from sub folder or sub directory to ROOT folder, for example here I will use "public_html"

Its possible to do that in two options  using htaccess. The below methods can redirect all the http://thelinuxfaq.com/about requests to http://thelinuxfaq.com/

Option 1:

Create a .htaccess  file inside public_html directory and add the following line:
 

RewriteEngine on
RewriteRule ^about/(.*)$  /$1 [R=301,L]

(or)

Option 2:

Create a .htaccess  file inside public_html directory and add the following line:
 
RewriteEngine On
RewriteRule ^(.*)$  /$1 [R=301,L]