Example plans)
task: use the terminal below to delete a file ending with the extension .gpg
plan:
1. Type "ls" to list all files in the terminal with "type ls" instruction.
2. Press enter with "press enter" instruction
3. Identify the filename ending with ".gpg" and type "rm [filename].gpg" to delete the identified file with type instruction.
4. Press enter everytime after typing a command on terminal.
