How to insert an offset to hexdump with xxd?

Question

Is there an easy way to add an offset to the hex dump generated by xxd ?

i.e instead of

0000: <data>
0004: <data>
0008: <data>

I should get

Offset+0000: <data>
Offset+0004: <data>
Offset+0008: <data>

Solution 1

This is what I am doing now..It works perfectly but its kind of lame approach for just adding an offset :)

xxd file.bin | xxd -r -s 0x2e00000 | xxd -s 0x2e00000 > file.hex

Solution 2

xxd now appears to come with offset support, using -o [offset]

for example: xxd -o 0x07d20000 file.bin

My version of xxd on Gentoo Linux has it, but I dug deeper to help folks on other distros:

xxd V1.10 27oct98 by Juergen Weigert -- Do not use the xxd version -- I have found this source code without the offset support!! So I tracked down where my binary comes from:

app-editors/vim-core-7.4.769 -- So apparently, as long as you have a modern VIM installed, you can reap the benefits of the added offset support; at least on Gentoo, but I'm steering you in the right direction.

If you find that your distro still ships an older xxd, considering manually compiling a newer VIM that you confirm has offset support.