How to see user defined variables in spark shell

I often define vals and vars in spark shell and after some time I forget the ones I defined. I want to see only the ones I had defined and the ones that come from spark. I have tried the following commands but all of them show the variables and defs defined by spark also $intp.definedTerms

Ctrl - left and right now working in Spark Shell in Windows 10

I installed Spark on Windows 10. Everything works fine except for the Ctrl - left and Ctrl - right keys which doesn't move a word but just a character. How do I fix this or find out what are the correct bindings to move a word in Spark Shell -- Thanks, Salil "The surest sign that intelligent