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+<chapter xmlns="http://docbook.org/ns/docbook"
+        xmlns:xlink="http://www.w3.org/1999/xlink"
+        xmlns:xi="http://www.w3.org/2001/XInclude"
+        version="5.0"
+        xml:id="sec-user-sessions">
+ <title>User Sessions</title>
+ <para>
+  Systemd keeps track of all users who are logged into the system (e.g. on a
+  virtual console or remotely via SSH). The command <command>loginctl</command>
+  allows querying and manipulating user sessions. For instance, to list all
+  user sessions:
+<screen>
+<prompt>$ </prompt>loginctl
+   SESSION        UID USER             SEAT
+        c1        500 eelco            seat0
+        c3          0 root             seat0
+        c4        500 alice
+</screen>
+  This shows that two users are logged in locally, while another is logged in
+  remotely. (“Seats” are essentially the combinations of displays and input
+  devices attached to the system; usually, there is only one seat.) To get
+  information about a session:
+<screen>
+<prompt>$ </prompt>loginctl session-status c3
+c3 - root (0)
+           Since: Tue, 2013-01-08 01:17:56 CET; 4min 42s ago
+          Leader: 2536 (login)
+            Seat: seat0; vc3
+             TTY: /dev/tty3
+         Service: login; type tty; class user
+           State: online
+          CGroup: name=systemd:/user/root/c3
+                  ├─ 2536 /nix/store/10mn4xip9n7y9bxqwnsx7xwx2v2g34xn-shadow-4.1.5.1/bin/login --
+                  ├─10339 -bash
+                  └─10355 w3m nixos.org
+</screen>
+  This shows that the user is logged in on virtual console 3. It also lists the
+  processes belonging to this session. Since systemd keeps track of this, you
+  can terminate a session in a way that ensures that all the session’s
+  processes are gone:
+<screen>
+# loginctl terminate-session c3
+</screen>
+ </para>
+</chapter>