From: Robert Klemme <shortcutter@...>
Date: 2010-12-27T20:57:39+09:00
Subject: Re: how to change it in to hex?

On Mon, Dec 27, 2010 at 12:32 PM, Pen Ttt <myocean135@yahoo.cn> wrote:
> ni my console,hexdump -C /home/pt/kc|less,what i get is :
>
> 00000000  00 00 00 00 56 b8 32 01  06 13 00 00 00 00 00 00
> 00000010  00 00 00 00 00 00 1f ab  ca 48 00 00 00 00 00 00
>
> irb(main):011:0> IO.read('/home/pt/kc', 8, 0x00)
> => "\000\000\000\000V\2702\001"
>
> how to make   "\000\000\000\000V\2702\001"  become  00 00 00 00 56 b8 32
> 01?

ri String#unpack

irb(main):006:0> s.unpack('H*').first.scan(/../).join ' '
=> "00 00 00 00 56 b8 32 01"

Cheers

robert

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