.BI \-b blocksize
]
[
-.B \-BeksvxX
+.B \-BeEkPsvVxX
]
[
.I files...
.BR filefrag ,
if
.I blocksize
-is unspecified it defaults to 1024 bytes.
+is unspecified it defaults to 1024 bytes. Since
+.I blocksize
+is an optional argument, it must be added without any space after
+.BR -b .
.TP
.B \-e
Print output in extent format, even for block-mapped files.
Display the contents of ext4's extent status cache. This feature is not
supported on all kernels, and is only supported on ext4 file systems.
.TP
+.B \-k
+Use 1024\-byte blocksize for output (identical to '\-b1024').
.TP
.B -P
-Pre-load the ext4's extent status cache for the file. This feature is not
-supported on all kernels, and is only supported on ext4 file systems.
-.B \-k
-Use 1024\-byte blocksize for output (identical to '\-b 1024').
+Pre-load the ext4 extent status cache for the file. This is not
+supported on all kernels, and is only supported on ext4 filesystems.
.TP
.B \-s
Sync the file before requesting the mapping.
.B \-v
Be verbose when checking for file fragmentation.
.TP
+.B \-V
+Print version number of program and library. If given twice, also
+print the FIEMAP flags that are understood by the current version.
+.TP
.B \-x
Display mapping of extended attributes.
.TP