My goal is 1) to obtain financial data from yahoo api or same kind 2) apply data into my model.
I know some R-programming and very basic shell scripting on linux(I am working on ubuntu).
Since I am not expert on any of those and now I have purpose of learning a language, I want to know what type or kind of language would be good for my goal.
I researched a little and Java, C++, SQL are popular but I don't know why they are.
I like shell scripting style.
Any suggestion?