View online help information about any Linux command.
info [options] command
-d dirname adds a directory to a list of directories to be searched for files.
-f infofile specifies the file to be used by info.
-h displays usage information about info.
The info command displays online help information about a specified command in a full-screen text window. You can use Emacs commands to navigate the text displayed by info. To learn more about info, type info without any arguments.