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27 lines
895 B
Plaintext
27 lines
895 B
Plaintext
---
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syntax: markdown
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tags: [tldr, osx]
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source: https://github.com/tldr-pages/tldr.git
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---
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# fsck
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> Check the integrity of a filesystem or repair it. The filesystem should be unmounted at the time the command is run.
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> It is a wrapper that calls `fsck_hfs`, `fsck_apfs`, `fsck_msdos`, `fsck_exfat`, and `fsck_udf` as needed.
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> More information: <https://keith.github.io/xcode-man-pages/fsck.8.html>.
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- Check filesystem `/dev/sdX`, reporting any damaged blocks:
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`fsck {{/dev/sdX}}`
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- Check filesystem `/dev/sdX` only if it is clean, reporting any damaged blocks and interactively letting the user choose to repair each one:
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`fsck -f {{/dev/sdX}}`
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- Check filesystem `/dev/sdX` only if it is clean, reporting any damaged blocks and automatically repairing them:
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`fsck -fy {{/dev/sdX}}`
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- Check filesystem `/dev/sdX`, reporting whether it has been cleanly unmounted:
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`fsck -q {{/dev/sdX}}`
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