MirOS Manual: mkdir(1)  MKDIR(1)                     BSD
Reference Manual                     MKDIR(1)        mkdir -
make directories        mkdir [-p] [-m mode] directory_name
[...]         The options are as follows:       -m mode
Set the file permission bits of the final created directory to
specified, the operators '+' and '-' are interpreted relative to
an initial mode of "a=rwx".       -p      Create intermediate
directories as required. If this option is              not
specified, the full path prefix of each operand must already
exist. Intermediate directories are created with permission bits
if the argument directory already exists.       The user must
have write permission in the parent directory. For an ex-
planation of the directory hierarchy, see hier(7).       The
mkdir utility exits 0 on success or >0 if an error occurred.
Create a directory named foobar:             $ mkdir foobar
Create a directory named foob