Linux script error. Why?

Question

linux

Good afternoon. 2 questions. 1. Why the error? 2. How to make a curl request occur when mv f is executed? Thanks

#!/bin/bash
#239
find . -name '*72762*' -exec sh -c 'x="{}"; mv "$x" "239.pdf"' \;

Error:
find: missing argument to '-exec'

Answer 1

My assumption above in the comment turned out to be correct. Do this:
dos2unix billing.sh

Answer 2

$(curl ....)
Better yet, write what you wanted to do, but somehow it all looks crooked