NOTHING(category23-linux-links.html) - phpMan
false (1) - do nothing, unsuccessfully fsck.btrfs (8) - do nothing, successfully fsck.xfs (8) - do nothing, successfully true (1) - do nothing, successfully
false (1) - do nothing, unsuccessfully fsck.btrfs (8) - do nothing, successfully fsck.xfs (8) - do nothing, successfully true (1) - do nothing, successfully