Squid 2.3.x (Maybe Off-Topic)

Hi all, have a question : I've now successfully installed a Squid-Proxy with SquidGuard. Now, I have to create about 100 users with their passwords and home-dirs. Is there a possibility to automate this ??? Maybe grepping from a text-file or something like that ? What's with the passwords ? The users have to verify with username and password before they're able to access the squid-cache. To check for users / passwords " pam_auth /etc/passwd " is used. Is that ok ? I'm thankfull for all replies ... ... bye bruno