Where is group file in Linux? The group membership in Linux is controlled through the /etc/group file. This is a simple text file that contains a list of groups and the members belonging to each group. Just like the /etc/passwd file, the /etc/group file consists of a series of colon-delimited lines, each of which defines a single group.
Where user information is stored? Most of the user account information is stored in the passwd file. However, password encryption and password aging is stored in the passwd file when using NIS or NIS+ and in the /etc/shadow file when using /etc files.
Which file is used to store user information in Linux? The /etc/passwd file is essentially the user account database in which Linux stores valid accounts and related information about these accounts. Each line of the /etc/passwd file is a single record in the user database and represents a single user.
What command displays the group memberships for a user? To display the members of a group, or the groups to which a user belongs, use the pts membership command. To display the groups that a user or group owns, use the pts listowned command.