Update cheatsheets

linux/e2fsck

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+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# e2fsck
+
+> Check a Linux ext2/ext3/ext4 filesystem. The partition should be unmounted.
+> More information: <https://manned.org/e2fsck>.
+
+- Check filesystem, reporting any damaged blocks:
+
+`sudo e2fsck {{/dev/sdXN}}`
+
+- Check filesystem and automatically repair any damaged blocks:
+
+`sudo e2fsck -p {{/dev/sdXN}}`
+
+- Check filesystem in read only mode:
+
+`sudo e2fsck -c {{/dev/sdXN}}`
+
+- Perform an exhaustive, non-destructive read-write test for bad blocks and blacklist them:
+
+`sudo e2fsck -fccky {{/dev/sdXN}}`