Published Book on Amazon
|All of IOT Starting with the Latest Raspberry Pi from Beginner to Advanced – Volume 1|
|All of IOT Starting with the Latest Raspberry Pi from Beginner to Advanced – Volume 2|
출판된 한글판 도서
|최신 라즈베리파이(Raspberry Pi)로 시작하는 사물인터넷(IOT)의 모든 것 – 초보에서 고급까지 (상)|
|최신 라즈베리파이(Raspberry Pi)로 시작하는 사물인터넷(IOT)의 모든 것 – 초보에서 고급까지 (하)|
Original Book Contents
12.7.2 Relationship between User and User Group
In the Raspberry Pi system, certain user account is always assigned to a specific group. Also, certain user account can belong to more than one group at the same time.
If you do not specify a separate group for a specific user account, the user always belongs to the primary group, which is its own group. This primary group has the same name as its own user account, contains its own user account only, and is created automatically even if you do not create it separately.
A user account belonging to a specific group can carry out the business by inheriting the responsibility and privilege assigned to the group. If the user account belongs to several groups, the user can carry out the business by inheriting the responsibilities and privileges of the entire group together that he belongs to.