You have successfully executed LINK.EXE and bypassed the firewall.
List all files and folders in your current location.
Enter a folder. Use CD DOCS to open Docs.
Go back to the previous (parent) folder.
Open and read a text (.TXT) file. Try READ DIARY.TXT.
Launch an executable (.EXE) file. Try RUN LINK.EXE.
Clear the terminal screen of all previous output.
Open this command reference guide again.