This will print the offset and bytes in hex:
cmp -l file1.bin file2.bin | gawk '{printf "%08X %02X %02X\n", $1, strtonum(0$2), strtonum(0$3)}'
Or do $1-1
to have the first printed offset start at 0.
cmp -l file1.bin file2.bin | gawk '{printf "%08X %02X %02X\n", $1-1, strtonum(0$2), strtonum(0$3)}'
Unfortunately, strtonum()
is specific to GAWK, so for other versions of awk—e.g., mawk—you will need to use an octal-to-decimal conversion function. For example,
cmp -l file1.bin file2.bin | mawk 'function oct2dec(oct, dec) {for (i = 1; i <= length(oct); i++) {dec *= 8; dec += substr(oct, i, 1)}; return dec} {printf "%08X %02X %02X\n", $1, oct2dec($2), oct2dec($3)}'
Broken out for readability:
cmp -l file1.bin file2.bin |
mawk 'function oct2dec(oct, dec) {
for (i = 1; i <= length(oct); i++) {
dec *= 8;
dec += substr(oct, i, 1)
};
return dec
}
{
printf "%08X %02X %02X\n", $1, oct2dec($2), oct2dec($3)
}'