---
title: "创建好的btrfs如何压缩现有文件"
description: "参考"
canonical_url: "https://yangqiuyi.com/blog/linux/chuang-jian-hao-de-btrfs-ru-he-ya-suo-xian-you-wen-jian"
---

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# 创建好的btrfs如何压缩现有文件

[参考](https://archive.kernel.org/oldwiki/btrfs.wiki.kernel.org/index.php/Problem_FAQ.html#Defragmenting_a_directory_doesn.27t_work)

```sh
btrfs filesystem defragment -r -czstd /
```

表示从根目录开始递归的使用zstd算法压缩文件

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