Htaccess config to create page redirection

May I know what is the meaning of each lines in htaccess whenever a page is redirected? Thanks

RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ index.php/$1 [L]

Code:

RewriteEngine On

Enable Apache webserver URL rewrite feature

Code:

RewriteCond %{REQUEST_FILENAME} !-f

If URL is not actual file ...

Code:

RewriteCond %{REQUEST_FILENAME} !-d

... and URL is not actual directory ...

Code:

RewriteRule ^(.*)$ index.php/$1

... then take URL and return output of index.php script instead, using URL as one of attributes for index.php


Here's more detailed explanation of URL rewrite
https://www.addedbytes.com/blog/url-rewr...-beginners