I just recently noticed that my Mac has two versions of Ruby installed (not sure how this happened). I have been completing the Alpha Course exercises just fine, but I wanted to know if this would cause any potential hiccups during the full-time program. I included two screenshots below. Basically, when i first open up Terminal and type
ruby -v , terminal displays ruby 2.5.1p57. However, when I type in
source ~/.bashrc and then
the result is ruby 2.3.1p112. Any information is much appreciated!