htpasswd is used to create and update the flat-files used to store usernames and password for basic authentication of HTTP users. Resources available from the Apache HTTP server can be restricted to just the users listed in the files created by htpasswd. This program can only manage usernames and passwords stored in a flat-file.
To restrict access to certain HTTP resources, we need to create two files: .htaccess and .htpasswd (or equivalent per httpd.conf setting). The .htaccess file looks something like:
-- [.htaccess] file content begins --
