TLDR
Enter a command. For example: notify send, alien, cgroups, pacman sync.

fsck

 
Check the integrity of a filesystem or repair it. The filesystem should be unmounted at the time the command is run. More information: https://manned.org/fsck.
 
  • Check filesystem /dev/sdXN, reporting any damaged blocks:
     
    sudo fsck {{/dev/sdXN}}
     
  • Check filesystem /dev/sdXN, reporting any damaged blocks and interactively letting the user choose to repair each one:
     
    sudo fsck -r {{/dev/sdXN}}
     
  • Check filesystem /dev/sdXN, reporting any damaged blocks and automatically repairing them:
     
    sudo fsck -a {{/dev/sdXN}}

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