Help needed - Script1

Write a script called big which takes a filepath as an argument. The script
should print "Big" if the file is more than 1000 bytes or "Small" if the file
is less than 1000 bytes. If exactly one argument was not given, print "Error"
to stderr.

University Of technology Sydney - Unix Systems Programming

First please show your attempt(s)!
Also please include the school/course information with every new thread.