.htpasswd

The format of the password file is straightforward, one line per user, with the line containing the user name, followed by a colon, followed by the user's password encrypted with the standard Unix password encryption. <crypt> can be used to encrypt such a password.

In other words, an .htpasswd can look like this:

frotz:taeWr6tbTZKO6
gnusto:jKXVnZH6eXR7

with one line for each user.