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94 lines
2.7 KiB
YAML
94 lines
2.7 KiB
YAML
id: read
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title: Reading File Contents
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image: base
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instruction: |
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In this quest, you will learn:
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1. How to display file contents with `cat`
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requirements:
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- path
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stages:
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- id: start
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name: Click `Start` to begin the lesson
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condition:
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command: echo start
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response:
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content: |
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The terminal has no graphical interface for viewing file contents.
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Instead, you can use `cat` to display them.
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`cat` is short for concatenate, which means joining things together.
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Enter `cat [filename]` to print a file's contents in the terminal.
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First, see which files are in this folder.
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hint: Enter `ls` to list the files in this folder.
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- id: ls_home
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name: List the files in the folder
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requirements:
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- start
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condition:
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pwd: /home/commander
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command: ls
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response:
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content: |
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This folder contains one file and one folder.
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Now use `cat` to display the contents of `file1.txt`.
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hint: Enter `cat file1.txt` to display the file contents.
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- id: cat-file1
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name: Display the contents of `file1.txt`
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requirements:
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- ls_home
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condition:
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pwd: /home/commander
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command: cat file1.txt
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response:
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content: |
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You should now see the file's contents.
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You can also give `cat` a path to a file in another folder.
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First, use `ls folder` to list the files inside `folder`.
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hint: Enter `ls folder` to list the files inside the folder
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- id: ls-folder
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name: List the contents of `folder`
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requirements:
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- cat-file1
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condition:
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pwd: /home/commander
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command: ls folder
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exceptions:
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- id: not_in_home
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condition:
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not:
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pwd: /home/commander
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response:
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content: |
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Stay in the `/home/commander` folder.
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Enter `cd ~` to return to `/home/commander`.
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response:
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content: |
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You now know what is inside `folder`.
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Use `cat` to display the contents of `file.txt` inside `folder`.
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hint: Enter `cat folder/file.txt` to display the contents of `file.txt`.
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- id: END
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name: Display the contents of `file.txt`
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requirements:
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- ls-folder
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condition:
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pwd: /home/commander
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command: cat folder/file.txt
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exceptions:
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- id: not_in_home
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condition:
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not:
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pwd: /home/commander
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response:
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content: |
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Stay in the `/home/commander` folder.
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Enter `cd ~` to return to `/home/commander`.
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response:
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content: |
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You have displayed the contents of `file.txt`.
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You now know how to display file contents with `cat`.
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