Linux Users and Groups - Base knowledge

Sometimes you have confused about Linux user, in this article, I show you:

How to find out what groups?

/etc/group is a text file which defines the groups on the Linux system. You can use 'groups' command toe display group memberships using the following syntax:

groups user-name

How do I find out the primary group membership?

getent group user-name

Add a new group

groupadd group-name

Add an existing user to a group

usermod -a -G group-name user-name

Change user's primary group

usermod -g group-name user-name

View a list of all groups

groups

Delete group

groupdel group-name

Thank you for reading this article, please a comment if you are interested.

Tiến Phan - R0039

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