ref: aee54575feb52e3453018bdadd7317a35915423f
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