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I changed my user account to be a member of the root group, so that I could read and execute things that other users could not (i.e. everything in the root directory). I did this so that I could make a guest account and put it on an FTP. But for some reason, even though I am a member of the root group, and it is my primary group, I still only have privileges that "other users" have. I can't read or execute anything unless the last number on chmod is 5.
I really wouldn't recommend doing it that way. If you really need to give a user access to certain commands that require root permissions, try using sudo and the /etc/sudoers file instead. If you personally just want to be able to execute commands as root when logged in as a normal user, try using su - instead. Giving other users full root privileges is a really bad idea.
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