Thank you for this. The listed method above did not work, however this worked for me in 10.10.5
defaults write com.apple.finder AppleShowAllFiles -boolean true ; killall Finder
I located the how to at this site
https://blog.bertvanlangen.com/articles/toggle-hidden-files-finder-os-x-10-10-yosemite/
Appreciate the help!
Cheers,
Justin