Re: [Gnumed-devel] Problems dumping database (Mac limitation on su -c)

[Karsten Hilbert]

On Fri, May 27, 2011 at 12:33:16AM -0700, Jim Busser wrote:

> > So that's fine, there is a group "djb".
> 
> In spite of which the Mac still did not like
> 
>       "$USER:$USER"
> 
> complaining about an invalid argument, and yet using just
> 
>       "$USER"
> 
> results in auto assignment of owner and group
> 
>       djb     djb

What does "echo $USER" say ?

Perhaps Apple has decreed that in its infinite wisdom $USER
already contains the (primary) group ?  I wouldn't be
surprised.

> or (if via sudo or as root)
> 
>       root     admin
> 
> By comparison, using chown directly in the command line,
> 
>       chown djb:djb foo.tar

But "chown $USER:$USER foo.tar" won't.

> works and so does
> 
>       chown root:admin foo.tar
> 
> so evidently Mac has some problem processing the python "$USER:$USER"

Despite the nitpick the it's a shell script rather than
Python, the most logical conclusion to me seems that $USER
already contains a group designation.

Such things are, BTW, exactly why it is configurable.

Karsten
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