UNIX操作系統(tǒng)章節(jié)練習(xí)(2019.12.11)

A、stdout.h
B、sys/socket.h
C、sys/msg.h
D、netinet/in.h

A.mkdir -p B/C/D/E
B.mkdir B；mkdir B/C；mkdir B/C/D；mkdir B/C/D/E
C.mkdir B/C/D/E