Thanks Vivek,

We are looking at Segregation of Duties (checking whether developers are in the production environment). I want to see whether the users in the systems are having administrator's rights. From what i understand, the /etc/security/user can show me whether they are having that rights or not. This /etc/security/user also includes other attributes like the password information. So i'm just wondering whether these information can be extracted/captured in Linux. If yes, where can i get them?

I hope you understand.

By the way, what is PAM?

Thanks.

Regards,
Teng Cheng