1e41f4b71Sopenharmony_ci# du 2e41f4b71Sopenharmony_ci 3e41f4b71Sopenharmony_ci 4e41f4b71Sopenharmony_ci## 命令功能 5e41f4b71Sopenharmony_ci 6e41f4b71Sopenharmony_cidu显示指定的文件所占用的磁盘空间。 7e41f4b71Sopenharmony_ci 8e41f4b71Sopenharmony_ci 9e41f4b71Sopenharmony_ci## 命令格式 10e41f4b71Sopenharmony_ci 11e41f4b71Sopenharmony_cidu [_-kKmh_] [_file..._] 12e41f4b71Sopenharmony_ci 13e41f4b71Sopenharmony_ci 14e41f4b71Sopenharmony_ci## 参数说明 15e41f4b71Sopenharmony_ci 16e41f4b71Sopenharmony_ci**表1** 参数说明 17e41f4b71Sopenharmony_ci 18e41f4b71Sopenharmony_ci| 参数 | 参数说明 | 19e41f4b71Sopenharmony_ci| ------ | ------------------------------------------------------------ | 20e41f4b71Sopenharmony_ci| --help | 查看du命令支持的参数列表。 | 21e41f4b71Sopenharmony_ci| -k | 显示占用的块，每块1024bytes（默认）。 | 22e41f4b71Sopenharmony_ci| -K | 显示占用的块，每块512bytes（posix标准）。 | 23e41f4b71Sopenharmony_ci| -m | 兆字节为单位。 | 24e41f4b71Sopenharmony_ci| -h | 以K，M，G为单位，提高信息的可读性（例如，1K 243M 2G）。 | 25e41f4b71Sopenharmony_ci| file | 指定的需要统计的文件。 | 26e41f4b71Sopenharmony_ci 27e41f4b71Sopenharmony_ci 28e41f4b71Sopenharmony_ci## 使用指南 29e41f4b71Sopenharmony_ci 30e41f4b71Sopenharmony_ci- 不支持统计目录的大小，只支持统计文件的大小。 31e41f4b71Sopenharmony_ci 32e41f4b71Sopenharmony_ci- file的内容既为文件名，不能包含其所在的目录。 33e41f4b71Sopenharmony_ci 34e41f4b71Sopenharmony_ci## 特殊说明 35e41f4b71Sopenharmony_ci 36e41f4b71Sopenharmony_cishell端暂不支持。切换mksh版本可全支持，方法：cd bin; ./mksh。 37e41f4b71Sopenharmony_ci 38e41f4b71Sopenharmony_ci## 使用实例 39e41f4b71Sopenharmony_ci 40e41f4b71Sopenharmony_ci举例：du -h testfile 41e41f4b71Sopenharmony_ci 42e41f4b71Sopenharmony_ci 43e41f4b71Sopenharmony_ci## 输出说明 44e41f4b71Sopenharmony_ci 45e41f4b71Sopenharmony_ci**示例** 显示结果如下 46e41f4b71Sopenharmony_ci 47e41f4b71Sopenharmony_ci``` 48e41f4b71Sopenharmony_ciOHOS:/$ du -h testfile 49e41f4b71Sopenharmony_ci1.8K testfile 50e41f4b71Sopenharmony_ci```