ref: 7d146bd75d98bea509acfad35ee5515423892e47
dir: /lib/System/Cmd.hs/
module System.Cmd(system) where import Prelude(); import MiniPrelude 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