tldr/pages/linux/fsck.md

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# fsck
> Check the integrity of a filesystem or repair it. The filesystem should be unmounted at the time the command is run.
- Check filesystem `/dev/sdX`, reporting any damaged blocks:
`fsck {{/dev/sdX}}`
- Check filesystem `/dev/sdX`, reporting any damaged blocks and interactively letting the user choose to repair each one:
`fsck -r {{/dev/sdX}}`
- Check filesystem `/dev/sdX`, reporting any damaged blocks and automatically repairing them:
`fsck -a {{/dev/sdX}}`