In Linux there are some essential tools, which can help to work with files and directories.
lets discuss some of these tools
Man:
Man command helps to understand the Syntax of that command and use of that command.
It opens the man pages of the command, using arrows keys you can scroll the page and to exit from that page we need to press ‘q’
here it is showing all the information regarding the command ‘mkdir’

Name: Name of the Command
Synopsis: Syntax for using that command
Description: for what purpose that command is used and detail explanation about the options.