<Jafet> (echo \'#!/bin/sh\'; echo \'if [ $# -ne 0 ]; then for f in "$@"; do echo "#!/bin/cat" && cat "$f"; done; else echo "#!/bin/cat" && cat; fi\') > bin/makequine && chmod +x bin/makequine

#!/usr/bin/env python
print (lambda s: "".join([(s[i].upper() if i%2==0 else s[i].lower()) for i in range(len(s)) ]))(open("/dev/stdin").read())