Safe Haskell | Safe-Inferred |
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Extra functions for System.Environment. All these functions are available in later GHC versions, but this code works all the way back to GHC 7.2.
- module System.Environment
- getExecutablePath :: IO FilePath
- lookupEnv :: String -> IO (Maybe String)
Documentation
module System.Environment
getExecutablePath :: IO FilePath
Returns the absolute pathname of the current executable.
Note that for scripts and interactive sessions, this is the path to the interpreter (e.g. ghci.)