At times, you need some information about your file system. There is a utility dumpe2fs which can give you number of information about Linux file system. For example, if you want status of bad blocks on a device containing Linux file system, run dumpe2fs with option –b. It will check for bad blocks and give you information about the bad blocks it finds in a dumped file. Dumpe2fs has various arguments and options and you can get the information you need about your file system for a quick diagnosis. For more information on dumpe2fs, see its man pages.