e2undo [ -f ] [ -h ] [ -n ] [ -v ] undo_log device
e2undo will replay the undo log undo_log for an ext2/ext3/ext4 filesystem found on device. This can be used to undo a failed operation by an e2fsprogs program.
e2undo was written by Aneesh Kumar K.V. (firstname.lastname@example.org)
e2undo is part of the e2fsprogs package and is available from http://e2fsprogs.sourceforge.net.