diff --git a/usage.go b/usage.go
index e6754ac..c1c23c7 100644
--- a/usage.go
+++ b/usage.go
@@ -19,6 +19,11 @@ func usage() {
 
 	-f filepath
 		Optional path to a file (relative to %s).
+		examples:
+			"main.go"        - targets the file main.go
+			"subdir/main.go" - targets the file subdir/main.go
+			"subdir"         - target every subdir file
+			"."              - target every file inside codepath
 
 %s
 	Adrien Marquès (aka. xdrm-brackets)