tldr/pages.zh/common/zstd.md

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# zstd
> 使用 Zstandard 压缩来压缩 / 解压文件.
> 更多信息:<https://github.com/facebook/zstd>.
- 将一个文件压缩到一个 `.zst` 后缀的压缩文件中:
`zstd {{file}}`
- 解压缩一个文件:
`zstd -d {{file}}.zst`
- 将文件解压缩到标准输出 (`stdout`):
`zstd -dc {{file}}.zst`
- 使用指定的压缩等级来压缩一个文件.0 = 最差19 = 最好 (默认等级是 3):
`zstd -{{level}} {{file}}`
- 使用更多内存 (解压或压缩时) 来得到更高的压缩比:
`zstd --ultra -{{level}} {{file}}`