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

[dokondr]

Hi,
When my program starts it needs to know a complete path to the directory
from which it was invoked.
In terms of standard shell (sh) I need the Haskell function that will do
equivalent to:

#!/bin/sh
path=$(dirname $0)

How to get this path in Haskell?

getProgName :: IO String
defined System.Environment only returns a file name of the program without
its full path.

Thanks!
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