You need to use the mkdir command to create new folders or directories under Linux operating systems.
mkdir command Syntax
mkdir command has the following syntax:mkdir dirname mkdir dirname1 dirname2 mkdir -p dir1/dir2/dir3
Examples
The following command would create a directory called foo:$ mkdir foo
To list directories, enter:
$ ls
$ ls -l
The following command would create two directories within the current directory:
$ mkdir tom jerry
$ ls -l
The -p option allows you to create parent directories as needed (if parent do not already exits). For example, you can create the following directory structure:
$ mkdir -p ~/public_html/images/trip