-The current tracing session is used by default when a session can be
-specified in other commands. See linklttng:lttng-create(1) for more
-information about the current tracing session.
+The `set-session` command effectively updates the `$LTTNG_HOME/.lttngrc`
+file.
+
+List the tracing sessions of your Unix user, or of all users if
+your Unix user is `root`, within the connected session daemon with the
+man:lttng-list(1) command.