loginctl:tldr:a5c09

The command "loginctl list-sessions" is used to display a list of current active user sessions on a Linux system using systemd.

Systemd is a system and session manager that is commonly used in many Linux distributions. It manages the startup and control of various processes and services on the system.

When you run the "loginctl list-sessions" command, it queries systemd to obtain information about the active user sessions. Each session represents a user login or remote access to the system.

The information displayed typically includes the session ID, user ID, user name, and the seat on which the session is running. Additional details like the session's state, the display or terminal it is attached to, and the session's class or type may also be provided.

This command can be useful for system administrators to monitor and manage user sessions, track user logins, and take appropriate actions, such as terminating or restarting sessions if needed.