Problems in running shell scripts on cygwin

I copied pasted this code : 

#!/usr/bin/sh

N=1

while test "$N" -le "10"

do

echo "Number $N"

  N=$[N+1]

done

in test.sh.

Then ran it like : 

./test.sh

To get : 

./test.sh: line 7: syntax error: unexpected end of file

Issue was that Windows/Dos files don't work well

as shell scripts, due to difference in new line formatting.

So, the solution is , dos2Unix convert command : 

d2u test.sh

And, that's all.

Run happily ever after.