If Command Extensions are enabled MKDIR changes as follows: MKDIR creates any intermediate directories in the path, if needed. ...

If Command Extensions are enabled MKDIR changes as follows:  MKDIR creates any intermediate directories in the path, if needed. For example, assume \a does not exist then:      mkdir \a\b\c\d  is the same as:      mkdir \a     chdir \a     mkdir b     chdir b     mkdir c     chdir c     mkdir d  which is what you would have to type if extensions were disabled.