Checking Your Answer on Mac/Linux: Copy and paste the following command, replace John Doe with the suspect's name you want to check, and execute it from inside the main clmystery directory: echo "John Doe" | $(command -v md5 || command -v md5sum) | grep -qif /dev/stdin encoded && echo CORRECT\! GREAT WORK, GUMSHOE. || echo SORRY, TRY AGAIN. Checking Your Answer on Windows: Copy and paste the following command, replace John Doe with the suspect's name you want to check, and execute it from inside the main clmystery directory: echo "John Doe" | $(command -v md5 || command -v md5sum) This will give you a long code of numbers and letters. Copy and paste the following command, replace My Code with the code you got, and execute it: grep -qi "My Code" encoded && echo CORRECT\! GREAT WORK, GUMSHOE. || echo SORRY, TRY AGAIN. Seeing The Answer: To give up and view the correct answer, copy and paste the following command and execute it from inside the main clmystery directory: echo " " && sed -n '/Z/p' encoded | tail -n 6 | cut -c 8,22,23,41 && echo " "