Re: command-line test for 64-bit hardware?
Re: command-line test for 64-bit hardware?
- Subject: Re: command-line test for 64-bit hardware?
- From: "Kyle Sluder" <email@hidden>
- Date: Thu, 6 Sep 2007 11:18:56 -0400
I'm not talking about error codes, I'm talking about stdout. sysctl
prints 1 for true and 0 for false.
--Kyle Sluder
On 9/6/07, Steve Checkoway <email@hidden> wrote:
>
> On Sep 5, 2007, at 12:32 PM, Kyle Sluder wrote:
>
> > `sysctl -n hw.optional.x86_64' will give you what you want. Though,
> > since this is going to be used from a shell, you'll probably want to
> > wrap it in a test, because sysctl returns 0 for no and 1 for yes.
>
> Are you saying that on intel, sysctl returns the opposite of the
> standard values?
> steve$ sysctl -n hw.optional.x86_64
> second level name optional in hw.optional.x86_64 is invalid
> steve$ echo $?
> 1
> steve$ sysctl -n hw.ncpu
> 2
> steve$ echo $?
> 0
>
> steve$ if sysctl -n hw.optional.x86_64 2>/dev/null; then echo x86_64;
> else echo not; fi
> not
>
> Seems like it works for me (on ppc).
>
> --
> Steve Checkoway
>
>
>
>
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