3 mkdir \- make a directory
15 creates the specified directories.
17 requires write permission in the parent directory.
23 creates any necessary parent directories
24 and does not complain if the target directory already exists.
28 flag sets the permissions to be used when creating the directory.
37 .B /sys/src/cmd/mkdir.c
40 returns null exit status if all directories were successfully made.
41 Otherwise it prints a diagnostic and returns