D = /usr/bin compress: compress.o cc -o compress compress.o install: compress rm -f $D/compress $D/uncompress $D/zcat cp compress $D strip $D/compress ln $D/compress $D/uncompress ln $D/uncompress $D/zcat chown bin,bin $D/compress chmod o-w,g+w $D/compress clean: rm -f a.out *.o compress