bash-3.2# cmp Source/忍者蛙.nes  Modified/忍者蛙233.nes Source/忍者蛙.nes Modified/忍者蛙233.nes differ: byte 234, line 2

bash-3.2# cmp --help Usage: cmp [OPTION]... FILE1 [FILE2 [SKIP1 [SKIP2]]] Compare two files byte by byte. -b  --print-bytes  Print differing bytes. -i SKIP  --ignore-initial=SKIP  Skip the first SKIP bytes of input. -i SKIP1:SKIP2  --ignore-initial=SKIP1:SKIP2 Skip the first SKIP1 bytes of FILE1 and the first SKIP2 bytes of FILE2. -l  --verbose  Output byte numbers and values of all differing bytes. -n LIMIT  --bytes=LIMIT  Compare at most LIMIT bytes. -s  --quiet  --silent  Output nothing; yield exit status only. -v  --version  Output version info. --help  Output this help. SKIP1 and SKIP2 are the number of bytes to skip in each file. SKIP values may be followed by the following multiplicative suffixes: kB 1000, K 1024, MB 1,000,000, M 1,048,576, GB 1,000,000,000, G 1,073,741,824, and so on for T, P, E, Z, Y. If a FILE is `-' or missing, read standard input. Report bugs to <bug-gnu-utils@gnu.org>.