Re: A good way to test if cygwin isn't installed?

[Andrew DeFaria <Andrew at DeFaria dot com>]

Christopher Faylor wrote:

> On Fri, Oct 01, 2004 at 02:51:01PM +1000, 
> luke.kendall@cisra.canon.com.au wrote:
>
> > I just wanted to run an idea past the list.
> >
> > I want to write a shell script to test if Cygwin has been installed 
> > on the machine running the shell script.
> >
> > I do this by running a shell (from a network install of Cygwin if 
> > necessary).
> >
> > If Cygwin is installed on the local machine, then "cygpath -w /" 
> > returns something like "c:\cygwin". (Good for discovering what drive  
> > Cygwin was installed on, right?) If Cygwin has not been installed,  
> > "cygpath -w /" returns a plain old backslash.
> >
> > That's fine - maybe even great. My question: is that a reliable way 
> > to perform that test? It seems good to me.
>
> If you have cygwin programs available to you, then use the mount 
> command. If the only output from the mount command is of the 
> "noumount" variety then cygwin isn't installed in any meaningful way.

Personally I would consider the existence or non-existence of 
cygwin1.dll to be a more definitive measure of whether or not Cygwin is 
installed in a "meaningful" way.

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