fsck(1M)fsck(1M)NAMEfsck - file system consistency check and interactive repair
FSType] [special ...]
FSType] FSspecific-options] [special ...]
The command audits and interactively repairs inconsistent conditions
for HP-UX file systems on mass storage device files identified by spe‐
cial. If the file system is consistent, the number of files on that
file system and the number of used and free blocks are reported. If
the file system is inconsistent, provides a mechanism to fix these
inconsistencies, depending on which form of the command is used.
special represents a special device (for example,
recognizes the following options:
Specify the file system type on which to operate (see
fstyp(1M) and fs_wrapper(5)). If this option is
not included on the command line, then the file
system type is determined from the file by match‐
ing special with an entry in that file. If there
is no entry in then the file system type is
determined from the file
Perform a sanity check only.
will return 0 if the file system is suitable for
mounting. If the file system needs additional
checking, the return code is 32. If the file
system is mounted, the return code is 33. Error
codes larger than 33 indicate that the file sys‐
tem is badly damaged.
Specify options specific to each file system type.
FSspecific-options is a list of suboptions and/or
keyword/attribute pairs intended for a file-sys‐
tem-specific version of the command. See the
file-system-specific manual entries for a
description of the specific_options supported, if
Safe performance mode. To improve performance, a system wide
will not be issued. This feature is underlying
file system dependent.
Echo the completed command line, but perform no other action.
The command line is generated by incorporating
the user-specified options and other information
derived from This option allows the user to ver‐
ify the command line.
The following values are returned by the option to
Either no errors were detected or all errors were corrected.
The file system needs additional checking.
The file system is mounted.
Return values greater that indicate that file system is badly cor‐
rupted. File system specific versions of will have their own addi‐
tional return values (see fsck_cachefs(1M), fsck_hfs(1M), or
This command may not be supported for all file system types.
If this command returns the message "Can't send after socket shutdown",
check with your system administrator to make sure the is running prop‐
Specifies the default file system type
Default list of file systems to check
SEE ALSOfsck_cachefs(1M), fsck_hfs(1M), fsck_vxfs(1M), mkfs(1M), newfs(1M),
fstab(4), fs_wrapper(5), disk(7).