Flatten a nested directory in Linux

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于 2014-05-25 07:13:14 发布

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本文介绍如何利用GNU find结合GNU mv命令批量将指定目录下的子目录中的所有文件移动到顶层目录。此方法适用于需要整理目录结构的情况，并提供了一个更通用但执行效率稍低的替代方案。

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You can do this with GNU find and GNU mv:

find /dir1 -mindepth 2 -type f -exec mv -t /dir1 -i '{}' +

Basically, the way that works if that find goes through the entire directory tree and for each file (-type f) that is not in the top-level directory (-mindepth 2), it runs a mv to move it to the directory you want (-exec mv … +). The -t argument to mv lets you specify the destination directory first, which is needed because the + form of -exec puts all the source locations at the end of the command.

As Stephane Chazelas points out, the above only works with GNU tools (which are standard on Linux, but not most other systems). The following is somewhat slower (because it invokes mv multiple times) but much more universal:

find /dir1 -mindepth 2 -type f -exec mv -i '{}' /dir1 ';'