When you're working in a REPL, it's really helpful to be able to see the commands you've typed in the past. That way you can easily re-run them, or copy and paste them into a script. To print out the history of commands you've typed in your shell, you can use the history command.
history
I work in engineering on opsBefore running these commands, ensure your history doesn't contain sensitive data (such as passwords or API keys). Consider running this assignment in a new shell session with a fresh or temporary history to protect your privacy.
Make sure you've copied all the above variables with correct spelling and capitalization... unless you like losing armor.