it took me quite a while to isolate the following.
what does this program print? certainly "A"
(written by the first system call) is different from "B"?
import System
main = do
system "echo A > foo"
a <- readFile "foo"
system "echo B > foo"
b <- readFile "foo"
print (a == b)
best regards,
--
-- Johannes Waldmann -- Tel/Fax (0341) 3076 6479/80 --
---- http://www.imn.htwk-leipzig.de/~waldmann/ -------
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