Another useful tool that you can use to find out more about Linux commands is info. info reads documentation in the info format (a special format generated usually from a Texinfo source). Info pages usually give more detailed information about a command then its respective man pages. Info also allows navigation and links between pages.
The syntax of the info command simple, just type info followed by the command. In the example below, we’ve entered info mkdir:
Note that not all commands have information available in the info database.