Bash脚本在所有文件前添加一个随机数 [英] Bash script to prepend a random number to all files

问题描述

我有一台似乎没有音乐随机播放功能的智能"电话，因此，下一个最好的事情是编写一个bash脚本，在当前目录中的所有文件名前添加一个随机数.

I have a "smart" phone that doesn't seem to have a music shuffle function, so the next best thing is to write a bash script to prepend all filenames in the current directory with a random number.

这很难吗?

推荐答案

不，这并不难.但是，它将破坏您精心设计的文件名，并且可能很难撤消.

No, this is not hard to do. It will however mess up your carefully crafted filenames, and might be hard to undo.

您可以将 $ RANDOM 用作bash中随机数的简单来源.为您情况:

You can use $RANDOM as a simple source of random numbers in bash. For your case:

#!/bin/bash
for file in *; do
  mv "$file" $RANDOM-"$file"
done

我没有对此进行测试.您可能希望自己在一些小型设备上进行测试样本以确保您知道它的作用.

I didn't test this. You probably want to test this yourself on some small sample to make sure you know what it does.

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