NAME du - estimate file space usage DESCRIPTION Summarize disk usage of each FILE, recursively for directories. Mandatory arguments to long options are mandatory for short options too.
du * -s linux
-s, --summarize display only a total for each argumentdu是这样一个程序:
1 linux中的程序通常都会听从作成过滤器的形式 shell
2 对全部文件大小进行计算 spa
3 为了查询方便,引入-h属性 code
-h, --human-readable print sizes in human readable format (e.g., 1K 234M 2G)