> For the complete documentation index, see [llms.txt](https://docs-cn.filswan.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs-cn.filswan.com/swan-client/chuang-jian-ren-wu-liu-cheng/filecoin-jiao-yi-fa-song-yin-qing/meta-car.md).

# Meta-CAR

`meta-car` 提供了一系列与 CAR 文件交互的工具。

```
swan-client meta-car -h

NAME:
   swan-client meta-car - Utility tools for CAR file(s)

USAGE:
   swan-client meta-car command [command options] [arguments...]

COMMANDS:
   generate-car  Generate CAR files of the specified size
   root          Get a CAR's root CID
   list          List the CIDs in a CAR
   restore       Restore original files from CAR(s)
   extract       Extract one original file from CAR(s)
```

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