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Within LTS Haskell 9.5 (ghc-8.0.2)

  1. getLine :: IO String

    base Prelude

    Read a line from the standard input device (same as hGetLine stdin).

  2. getContents :: IO String

    base Prelude

    The getContents operation returns all user input as a single string, which is read lazily as it is needed (same as hGetContents stdin).

  3. getProgName :: IO String

    base System.Environment

    Computation getProgName returns the name of the program as it was invoked. However, this is hard-to-impossible to implement on some non-Unix OSes, so instead, for maximum portability, we just return the leafname of the program as invoked. Even then there are some differences between platforms: on Windows, for example, a program invoked as foo is probably really FOO.EXE, and that is what getProgName will return.

  4. getLine :: IO String

    base System.IO

    Read a line from the standard input device (same as hGetLine stdin).

  5. getContents :: IO String

    base System.IO

    The getContents operation returns all user input as a single string, which is read lazily as it is needed (same as hGetContents stdin).

  6. dlerror :: IO String

    unix System.Posix.DynamicLinker

    No documentation available.

  7. dlerror :: IO String

    unix System.Posix.DynamicLinker.ByteString

    No documentation available.

  8. moduleError :: IO String

    unix System.Posix.DynamicLinker.Module

    No documentation available.

  9. moduleError :: IO String

    unix System.Posix.DynamicLinker.Module.ByteString

    No documentation available.

  10. getLoginName :: IO String

    unix System.Posix.User

    getLoginName calls getlogin to obtain the login name associated with the current process.

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