Short for file system check, fsck is a system
utility
that is used to check and repair inconsistencies in
Unix
and Unix-based
file systems, including
Linux. Fsck can be run in one of two modes:
- Interactive mode is where fsck scans the file system and, at each
error, prompts the user to correct or continue without making changes to the
file system.
- Noninteractive mode allows fsck to run and repair all problems it
finds automatically without user input.
On a Windows-based system, the equivalent utility is called
chkdsk.