Parent dir path in Haskell

To get the parent directory path in Haskell, we need to use the System.Directory module which provides functions for interacting with the file system.

The System.Directory.getParentDirectory function can be used to retrieve the parent directory of a given file or directory path.

Example:

import System.Directory (getParentDirectory)
main = do

  let path = "/home/user/documents/example.txt"

  let parentPath = getParentDirectory path

  putStrLn parentPath

In the above example, we first import the System.Directory module. We then define a file path path and use getParentDirectory to retrieve its parent directory path, which is then stored in parentPath.

We then print the value of parentPath to the console using the putStrLn function.

Output:

/home/user/documents