mkdir - make a directory mkdir [ -p ] [ -m . I mode ] dirname ... Mkdir creates the specified directories. It requires write permission in the parent directory.

If the -p flag is given, mkdir creates any necessary parent directories and does not complain if the target directory already exists.

The -m flag sets the permissions to be used when creating the directory. The default is 0777.

rm (1)

cd in rc (1)

/sys/src/cmd/mkdir.c Mkdir returns null exit status if all directories were successfully made. Otherwise it prints a diagnostic and returns "error" status.