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Allowing users to belong to multiple groups

Allowing users to belong to multiple groups

Group information in Linux is stored in the "/etc/group" file, which has the following notation
tama:x:500:
From left to right, tama is the group name, X is the password (when it says X, it is written in the /etc/gshadow file). 500 is the GID.
To make a user belong to multiple groups, edit the "/etc/group" file, but it is convenient to use the vigr command to edit the "/etc/group" file. (The operation method is the same as vi)
●To allow a user to belong to multiple groups, add the user lan to the group tama

[root@lion root]# vigr ←Run the vigr command
tama:x:500:lan ←Add lan to the right side of GID500。
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