+for
+.IR filename .
+.TP
+.BI dirty " [-clean]"
+Mark the file system as dirty, so that the superblocks will be written on exit.
+Additionally, clear the superblock's valid flag, or set it if
+.I -clean
+is specified.
+.TP
+.BI dump " [-p] filespec out_file"
+Dump the contents of the inode
+.I filespec
+to the output file
+.IR out_file .
+If the
+.I -p
+option is given set the owner, group and permissions information on
+.I out_file
+to match
+.IR filespec .
+.TP
+.BI dump_mmp " [mmp_block]"
+Display the multiple-mount protection (mmp) field values. If
+.I mmp_block
+is specified then verify and dump the MMP values from the given block
+number, otherwise use the
+.B s_mmp_block
+field in the superblock to locate and use the existing MMP block.
+.TP
+.BI dx_hash " [-h hash_alg] [-s hash_seed] filename"
+Calculate the directory hash of
+.IR filename .
+The hash algorithm specified with
+.I -h
+may be
+.BR legacy , " half_md4" ", or " tea .
+The hash seed specified with
+.I -s
+must be in UUID format.
+.TP
+.BI dump_extents " [-n] [-l] filespec"
+Dump the extent tree of the inode