id: checkpoint-02
title: Checkpoint 2
image: base
instruction: |
  This quest tests your understanding of:
  1. `cat`: display the contents of a file
  2. `touch`: create a file
  3. `mkdir`: create a folder
  4. Use the `Tab` key for autocompletion
  5. Topics covered in the previous checkpoint

requirements:
  - create

stages:
  - id: start
    name: Click `Start` to begin
    condition:
      command: echo start
    response:
      content: |
        This quest checks what you have learned in the previous lessons.
        You will need to choose the commands yourself.
        Think about which commands can help you complete each task.

        To continue, make the terminal print `next`.

  - id: next
    name: Make the terminal print `next`
    requirements:
      - start
    condition:
      output: next
    response:
      content: |
        Now list the contents of your current folder.

  - id: ls-home
    name: List the contents of the current folder
    requirements:
      - next
    condition:
      pwd: /home/commander
      command: ls
    response:
      content: |
        Display the contents of `hello.txt`.

  - id: cat-hello
    name: Display the contents of `hello.txt`
    requirements:
      - ls-home
    condition:
      command: cat hello.txt
      output: This is `hello.txt`.
    response:
      content: |
        Display the contents of the other file, which has a very long name.

  - id: cat-long-filename
    name: Display the contents of the other file
    requirements:
      - cat-hello
    condition:
      command: cat pneumonoultramicroscopicsilicovolcanoconiosis.txt
      output: A name that has been invented for a lung disease caused by breathing in very small pieces of ash or dust.
    response:
      content: |
        Now create a folder named `folder`.

  - id: mkdir-folder
    name: Create a folder named `folder`
    requirements:
      - cat-long-filename
    condition:
      files:
        - path: /home/commander/folder
          type: directory
          exists: true
    response:
      content: |
        Finally, inside the `folder` folder,
        create a file named `file.txt`.

  - id: finish
    name: Create `file.txt` inside `folder`
    requirements:
      - mkdir-folder
    condition:
      files:
        - path: /home/commander/folder/file.txt
          type: file
          exists: true
    response:
      content: |
        Congratulations! You passed this checkpoint!
        You are ready to move on to the next lessons.