-The main usage of selector is as an efficient search in the shell
-command history. With the correct option, it will inject the selected
-line into the virtual tty input buffer, hence allowing the user to
-edit the line and execute it as a standard command.
+This command was mainly designed as a way to search in the shell
+history, for which it is substantially more efficient than the
+standard readline ^R bidding. The -v option will inject the selected
+line into the tty input buffer, allowing the user to edit the line and
+execute it as a standard command.