One more for you:

cat /proc/cpuinfo | grep Serial | awk '{ print $3 }'

----- Original Message ----
From: Jason <gumstix@lakedaemon.net>
To: General mailing list for gumstix users. <gumstix-users@lists.sourceforge.net>
Sent: Friday, September 28, 2007 1:54:52 PM
Subject: Re: [Gumstix-users] Pull CPU Serial from /proc/cpuinfo

Ryan Pederson wrote:
> Hi all,
>
> Quick one for you guys...
>
> I need to pull the serial number of the CPU of the gumstix from
> /proc/cpuinfo.
>
> It's the very last line in the output:
>
> Processor       : XScale-PXA255 rev 6 (v5l)
> BogoMIPS        : 397.31
> Features        : swp half fastmult edsp
> CPU implementer : 0x69
> CPU architecture: 5TE
> CPU variant     : 0x0
> CPU part        : 0x2d0
> CPU revision    : 6
> Cache type      : undefined 5
> Cache clean     : undefined 5
> Cache lockdown  : undefined 5
> Cache format    : Harvard
> I size          : 32768
> I assoc         : 32
> I line length   : 32
> I sets          : 32
> D size          : 32768
> D assoc         : 32
> D line length   : 32
> D sets          : 32
>
> Hardware        : The Gumstix Platform
> Revision        : 0000
> Serial          : 328e1362e7af4134
>
> I just need the serial number, not the preceding text or spaces.  Any
> ideas how this might be done?
>
> The closest I can get is to type "cat /proc/cpuinfo | grep Serial"

cat /proc/cpuinfo | grep Serial | sed -r -e 's/^Serial.+?: //'

hth,

Jason

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