rb () {
[[ $1 == -l ]] && shift
case $? in
0 ) ruby -e "STDIN.each_line { |l| puts l.chomp.instance_eval(&eval('Proc.new { $* }')) }";;
* ) ruby -e "puts STDIN.each_line.instance_eval(&eval('Proc.new { $* }'))";;
esac
}