Usergroup privileges

tommypacific

Please excuse me for using English as my Chinese sucks.
Can someone point me to a place where I can find out the privileges of various usergroups in the /etc/group file?  I want to know what the user can and can not do if I place him/her in different usergroups.

Thanks!

d00m3d

Would this help?

http://www.linuxfromscratch.org/blfs/view/svn/postlfs/users.html