Group files for Linux user-related files

Group Information file:
1. File Address:
/etc/group
-rw-r--r--. 1 root root 492 October 6 21:56/etc/group
2. Contents of the file:
XIAOL:X:500:
3. Information meaning:
1th field: Group name
2nd field: Group password flag
3rd field: GID
4th field: Additional users in a group

Group Password file:
1. File Address:
/etc/gshadow
----------. 1 root root 399 October 6 21:56/etc/gshadow
2. Contents of the file:
xiaol:!::
3. Information meaning;
1th field: Group name
2nd field: Group password
3rd field: Group Administrator name
4th field: Additional users in a group

Description
1. Role of Group Admins and group passwords
Administrators can add and remove users to a group by using a group password
But this should be done by root, so it's not recommended to use this feature

Group files for Linux user-related files