Quiz · 5 questions
🐚 What Is a Shell? Foundations
Terminal basics, shell history, PATH, man pages, shortcuts
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Quiz
01Which statement best describes the relationship between a terminal, a shell, and a console?
Hint
Three different layers of one stack — window, interpreter, legacy term.
02What does macOS bash being frozen at 3.2 mean for you?
Hint
Apple stopped at bash 3.2 because of a license change in bash 4.
03What does
-- do at the boundary between flags and arguments?Hint
It tells the parser "no more flags from here on, only positional arguments."
04After installing a new tool with
brew install foo, the shell still says "command not found." What's the right next step?Hint
Shells cache the resolved path of every command they have run.
05A pipeline
cat missing.txt | wc -l exits with status 0 by default. Why?Hint
By default only the last stage's exit code matters; an option flips that.
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