Provided by:
radare-common_1.4-1ubuntu1_i386 
NAME
radiff - Unified binary diffing utility
SYNOPSIS
radiff [-cbgeirp] [file.a] [file.b]
DESCRIPTION
radiff implements some binary diffing algorithms.
-b Use bytediff (byte-per-byte binary diffing between two target
files), this is the faster way to do it, but it will not
handle byte insertion or offset displacements.
-d Use the GNU diff as backend (slow, but really good output)
-e Use the erg0ts generic c++ implementation of bindiff
-r Perform a diff between two RDB files (radare databases) these
files can be generated from radare using the code analysis
commands, or from IDA using the ida2rdb.idc script)
-h Show usage help message.
SEE ALSO
bindiff(1), hasher(1), radare(1), radarerc(5), rabin(1), rfile(1), xc(1),
rsc(1), rasc(1), rasm(1), xrefs(1)
AUTHORS
pancake <@youterm.com>