The mkdir command creates a single directories or multiple directories.
The syntax for the mkdir command is:
mkdir [options] directories
|-m mode||Sets the access mode for the new directory.|
|-p||If the parent directories don't exist, this command creates them.|
mkdir -m 444 tech mkdir -p tech/net/faqs
* Please note that there are many flavors of UNIX, so if in doubt, consult your man pages.