#/bin/bash 

set -v
touch inFile1
touch inFile2
touch inFile3
touch inFile4

runhaskell demo.hs; sleep 1

runhaskell demo.hs; sleep 1

echo "2" > inFile2

runhaskell demo.hs; sleep 1

rm outFile1

runhaskell demo.hs; sleep 1

echo "3" > inFile3

runhaskell demo.hs; sleep 1

echo "4" > inFile4

touch inFile4
runhaskell demo.hs; sleep 1