pipe - Redirect last action's stdout using >>= in haskell -

how can output previous action , print using >>= in haskell?

in shell, like,

echo "hello world" | { read test; echo test=$test; }

in haskell, looking like,

putstrln "hello world" >>= {x <- getargs; print x}

getargs stdin must take input putstrln's stdout.

edit#1, alexey & aochagavia, inputs. works.

x :: io string x = return "hello world"  main =   x >>= print

no, >>= doesn't have stdout. can use capture_ function silently package:

 x <- capture_ (putstrln "hello world")     print x

or capture_ (putstrln "hello world") >>= print.

Overvie