Fix Gem Executable Path Issue in Ubuntu

Fix Gem Executable Path Issue in Ubuntu: a task in Terminal-Lego-15k (Harbor dataset). You are working on an Ubuntu system where you've installed Ruby, RubyGems, and Rails using apt-get. You've successfully installed several gems including Capistrano and Heroku using sudo gem install , but when…

The task

You are working on an Ubuntu system where you've installed Ruby, RubyGems, and Rails using apt-get. You've successfully installed several gems including Capistrano and Heroku using `sudo gem install`, but when you try to run gem executables like `cap`, you receive a "command not found" error.

Part of PrimeIntellect/Terminal-Lego-15k.