一.du的功能:`du` reports the amount of disk space used by the specified files and for each subdirectory (of directory arguments). with no arguments,`du` reports the disk space for the current directory. 很明显,与df不同,它用来查看文件或目录所占用的磁盘空间的大小. 二.du常用的选项: -h:以人类可…