ref: 439ea35f310fcc33917f42bff2e04ff17501ae42
dir: /lib/System/Cmd.hs/
module System.Cmd(system) where import Foreign.C.String import System.Exit foreign import ccall "system" c_system :: CString -> IO Int system :: String -> IO ExitCode system s = do r <- withCAString s c_system return $ if r == 0 then ExitSuccess else ExitFailure r