-The default input path is `$LTTNG_HOME/.lttng/sessions`
-(`$LTTNG_HOME` defaults to `$HOME`). The input path can be
-overridden with the option:--input-path option.
+LTTng searches the following directories, non-recursively, in this order
+for tracing session configuration files:
+
+. `$LTTNG_HOME/.lttng/sessions` (`$LTTNG_HOME` defaults to `$HOME`)
+. +{system_sessions_dir}+
+
+Override the input path with the option:--input-path='PATH' option. With
+this option, LTTng does :not: search the default directories above.
+'PATH' can be the path of one of:
+
+A directory::
+ With the 'SESSION' argument:::
+ LTTng searches for the tracing session configuration named
+ 'SESSION' in all the files of the directory 'PATH' and loads it
+ if found.
+
+ Without the 'SESSION' argument:::
+ The option:--all option is implicit: LTTng loads all the tracing
+ session configurations found in all the files in the directory
+ 'PATH'.