Ruby - Gems and Bundler
What will be the output if you run the command
gem install bundler on a system where bundler is already installed?What will be the output if you run the command gem install bundler on a system where bundler is already installed?
medium📝 Predict Output Q4 of 15
Step-by-Step Solution
Solution:
Step 1: Understand gem install behavior with existing gems
If a gem is already installed,gem installusually informs you and skips reinstalling the same version.Step 2: Check options
It will show a message that bundler is already installed and skip installation correctly describes this behavior. It will reinstall bundler without any message is incorrect because it does show a message. It will update bundler to the latest version automatically is wrong because it does not update automatically. It will throw an error and stop is incorrect as no error occurs.Final Answer:
It will show a message that bundler is already installed and skip installation -> Option AQuick Check:
gem install existing gem = message and skip [OK]
Quick Trick: gem install skips already installed gems with a message [OK]
Common Mistakes:
- Assuming it always reinstalls silently
- Thinking it updates gem automatically
- Expecting an error on existing gem
Master "Gems and Bundler" in Ruby
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