[Haskell-cafe] How to get a file path to the program invoked?

[Simon Hengel]

On Thu, Dec 01, 2011 at 07:02:09PM +0100, Simon Hengel wrote:
> On Thu, Dec 01, 2011 at 03:53:37PM -0200, Felipe Almeida Lessa wrote:
> > On Thu, Dec 1, 2011 at 3:41 PM, Simon Hengel <simon.hengel at wiktory.org> wrote:
> > >> > How to get this path in Haskell?
> > >>
> > >> If I understand you correctly, you want
> > >>
> > >>   takeDirectory `fmap` getProgName
> > >
> > > I think getProgName does not give you the full path, but only the
> > > program name.
> > 
> > Neither does $0, does it?  It depends on how the program is called.
> $0 depend everything you need to find your program (say, the relative or
> absolute path used), but getProgName does not.  Here is an example:
> 
>     ./foo/foo
> 
> Here $0 will be "./foo/foo", but getProgName will be "foo".
s/depend/contains