Creating New Directories
Use the mkdir (make directory) command to create new directories, such as the following:
mkdir acme reports/acme
This example creates an acme directory within the current directory; it also creates one in the reports subdirectory of the current directory.
You can use the mkdir -p option to create a new directory and automatically create any missing parent directories, as in the following command:
mkdir -p /cities/Europe/UnitedKingdom/England/London
In this example, if the UnitedKingdom directory did not exist, it would be created. Then England would be created as a subdirectory, and London would be created as a subdirectory of England.
mkdir allows multiple pathnames, as noted in Table 3.4.