"David House" <[EMAIL PROTECTED]> writes: > Sorry Mads for multiple copies. > > On 16/01/07, Mads Lindstrøm <[EMAIL PROTECTED]> wrote: > >> The function System.system (:: String -> IO ExitCode) makes the OS >> execute it first parameter as a command. It prints its output to >> standard output and standard error. >> >> How do I easily capture this output? > > Try System.Process.runInteractiveCommand: > > import System.Process > import System.IO > > main = do > (inH, outH, errH, _) <- runInteractiveCommand "wc -w" > hPutStr inH "foo bar baz" > ws <- hGetContents outH > putStrLn ws > > -- Prints 3
Beware, deadlocks ahead. See: http://www.haskell.org/pipermail/libraries/2006-December/006635.html http://www.haskell.org/pipermail/haskell-cafe/2006-December/020528.html -- Feri. _______________________________________________ Haskell mailing list Haskell@haskell.org http://www.haskell.org/mailman/listinfo/haskell
