What does 'id' command do?

The id command in Linux is used to display user and group information for the current user or a specified user. It provides details such as the user ID (UID), group ID (GID), and the groups the user belongs to.

Basic Usage:

$ id

Example Output:

uid=1001(labby_user) gid=1001(labby_user) groups=1001(labby_user),27(sudo),1002(developers)

Breakdown:

• uid: User ID of the current user.
• gid: Primary group ID of the current user.
• groups: List of all groups the user is a member of, including the group names.

You can also specify another user by adding their username:

$ id username

This command is useful for checking user permissions and group memberships. If you have more questions, feel free to ask!