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Last updated Dec 20 2002

Each user belongs to one or more groups.  The only real importance of group relationships pertains to file permissions.

Group information is stored in /etc/groups in the format:

The password field is sometimes used to set a passwrod on group access.  This is seldom necessary.  To protect users from changing to privelegde groups with the newgroup command, set the password field to *.

Users should not be assigned (belong to) to groups like: bin, mail, sys, ...  They are for system file permissions.

to add a group, add a member to a group, delete a group, or remove a member from a group edit the /etc/group file