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

[Felipe Almeida Lessa]

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.

You can always use System.Directory.getCurrentDirectory with
System.FilePath.{isRelative,replaceDirectory} if you somehow need the
full path.  Note, however, that not even this is generally guaranteed
to be correct.

Cheers,

-- 
Felipe.