Linux and Unix mkdir command
Short for make directory this command is used to create a new directory.
mkdir [option] directory
|-m mode||Set permission mode (as in chmod), not rwxrwxrwx - umask.|
|-p||No error if existing, make parent directories as needed.|
|-v||Print a message for each created directory|
|-Z||(SELinux) set security context to CONTEXT|
|directory||The name of the directory that you wish to create.|
The above command creates a new directory called mydir.
mkdir -m a=rwx mydir
This next example would use the -m option to not only create the mydir directory but also set the permissions to all users having read, write, and execute permissions.