Hello,
Am Dienstag, 25. Oktober 2005 23:50 schrieb Eberhard Moenkeberg:
> On Tue, 25 Oct 2005, Robert Schiele wrote:
> > On Tue, Oct 25, 2005 at 10:13:09PM +0200, Eberhard Moenkeberg wrote:
> >> On Tue, 25 Oct 2005, Pascal Bleser wrote:
[...]
> Right. Topped.
>
> > But there is a big problem with that solution anyway: It assumes
> > that MemTotal is the first line in /proc/meminfo. If one decides
> > to reorder this table in the kernel or add some headline all your
> > scripts using this solution will break.
>
> Surely. It was just a sports exercise.
>
> If I would need it, I would do
>
> grep ^MemTotal /proc/meminfo | (read a b c; echo $b )
>
> and here bash needs the "(...)" to force the subprocess forking at
> the right point...
No, it does *not* need a subprocess. You just need to expand the
pipe ;-)
grep ^MemTotal /proc/meminfo | { read a b c; echo $b ; }
Topped again :-)
If you (or other readers) want an explanation about expanding the
subshell or even need to "export" variables from subshells, have a look
at my homepage [1]:
http://www.cboltz.de/de/linux/bash/?os (german)
http://www.cboltz.de/en/linux/bash/?os (english)
Oh, there's another way ;-)
set -- `grep ^MemTotal /proc/meminfo` ; echo $2
This time, I topped myself ;-)
Anybody out there who wants to top one of my solutions? *eg*
> BTW: Christoph just told me that he is really upset about the
> ignorance of all the readers here. He had done all his best to cat a
> good MemTotal value from a real system, but noone did realize it...
Now as you mention it - "MemTotal: 526525152 kB" (500 GB) is something
I'd like to have ;-) (even all machines I have here together don't
have that much _hard disk_ space...)
Regards,
Christian Boltz
[1] new design still pending because of a problem with IE :-(
--
[Debian] für meinen privaten Rechner ist es mir zu konservativ.
Da bastel ich gerne mal und wälze mich wollüstig in Featureitis
und Versionismus und bin erst glücklich, wenn das System ernst-
lich Schaden genommen hat. [Ratti in suse-linux]
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