Newbie question - running a command and looking at output

[Dave]

Dave wrote:
> I'm trying to run a command (arch -k) and check if the value returned is 
> 'sun4v' or not.
> 
> 
> kirkby at t2:[~] $ arch -k
> sun4v
> 
> In fact, I want to do 3 three things
> 
> 1) Check if the system is Solaris.
> 2) If it is Solaris, check if 'arch -k' prints 'sun4v'
> 3) If both 1 and 2 are true, copy a file.
> 
> 
> Since arch -k is not supported on all systems, the test for Solaris must 
> be made first.
> 
> I have a test for Solaris (aka SunOS), which copies a file if the 
> systems is running Solaris:
> 
> import os, shutil
> 
> if os.uname()[0] == 'SunOS':
>    shutil.copy2('foo.c','bar.c')
> 
> How can I change that, so the copy is only performed if 'arch -k' prints 
> 'sun4v'?
> 
> 
> 

Actually, when I look at oluname, it does print sunnv:


 >>> import os
 >>> os.uname()
('SunOS', 't2', '5.10', 'Generic_141414-02', 'sun4v')


I guess all I need to do is check for the value of os.uname()[4] too.


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