Fwd: LFS Script suggestion

Dan Nicholson dbn.lists at gmail.com
Mon Jan 29 20:24:58 PST 2007


On 1/29/07, Bruce Dubbs <bruce.dubbs at gmail.com> wrote:
>
> Linux version 2.6.9-42.0.3.EL_lustre.1.5.97smp (ltest at scsi1) (gcc
> version 3.4.4 20050721 (Red Hat 3.4.4-2)) #1 SMP Fri Jan 12 17:22:43 MST
> 2007
>
> And Alex:
>
> Linux version 2.6.18-3-686 (Debian 2.6.18-7) (waldi at debian.org) (gcc
> version 4.1.2 20061115 (prerelease) (Debian 4.1.1-20)) #1 SMP Mon Dec 4
> 16:41:14 UTC 2006
>
> How about:
>
> $ sed -r 's/.*(gcc version [01234567890\.]+).*/\1/' /proc/version
> gcc version 4.0.3
>
> I don't like all those backslashes.  :)

That's cool. I think you can still reduce the bracketed part to
[0-9\.]. However, the way it works now is that it prints your kernel
version and the associated gcc version. So, it needs a bit more work.
Oh, and distros often tend to add extra version fields to their
packages with - and _.

This is what I came up with, which unfortunately is getting long
again. Alexander might be right that `cat /proc/version' is the way to
go.

$ sed -r 's/.*(Linux version [^ ]+).*(gcc version [^ ()]+).*/\1 \2/'
/proc/version
Linux version 2.6.18.6-7 gcc version 4.0.3

And what it does for the Debian system.
$ sed -r 's/.*(Linux version [^ ]+).*(gcc version [^ ()]+).*/\1 \2/' foo
Linux version 2.6.18-3-686 gcc version 4.1.2

--
Dan



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