文件大小在人类可读的格式

本文介绍了文件大小在人类可读的格式的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

鉴于字节的文件的大小，我想它mebibytes等格式化kibibytes，为 显著数字与尾随零，例如的1883954变得1.80M。

Given the size of a file in bytes, I want to format it in kibibytes, mebibytes etc. to 3 significant figures with trailing zeros, e.g. 1883954 becomes 1.80M.

浮点运算是不是在bash的支持，所以我AWK来代替。问题是我不如何保持尾随零。目前的解决方案：

Floating-point arithmetic isn't supported in bash, so I used awk instead. The problem is I don't how to keep the trailing zeros. Current solution:

if [ $size -ge 1048576 ] then size=$(awk 'BEGIN {printf "%.3g",'$size'/1048576}')M elif [ $size -ge 1024 ] then size=$(awk 'BEGIN {printf "%.3g",'$size'/1024}')K fi

（该文件是没有那么大，所以我没有考虑更大的单位。）

(The files aren't that big so I don't have to consider bigger units.)

编辑：还有另外一个问题与此有关。请参见下面阿德里安Frühwirth的评论。

There's another problem with this. See Adrian Frühwirth's comment below.

推荐答案

有没有使用任何理由

ls -lh

命令？如果你是一个Linux系统已经在过去的几年里被释放，你有这个功能。

command ? If you are on a Linux system which has been released in the last few years, you have this functionality.