The Joy of Penguins : Linux System Administration

Linux System Administration

User Management

/etc/group

The /etc/group file has four fields in the following format:

group-name : password : group-ID : login-name-list

group-name : The name of the group.
password : Optional encrypted password. This is rarely used, and is usually an 'x'
group-ID : A number, with 1 - 499 reserved for system accounts.
login-name-list : a comma-separated list of users that belong to that group.

        [root@localhost temp]# more /etc/group
        root:x:0:root
        bin:x:1:root,bin,daemon
        daemon:x:2:root,bin,daemon
        sys:x:3:root,bin,adm
        xfs:x:43:
        named:x:25:
        ntp:x:38:
        gdm:x:42:
        mlevan:x:500:

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