100 lines
4.5 KiB
Markdown
100 lines
4.5 KiB
Markdown
---
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title: Downloading courses from Linux Academy
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subtitle: youtube-dl is a phenomenal tool
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description: Using youtube-dl to pull Linux Academy courses for offline viewing
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date: 2019-10-19T01:35:00-0400
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cover: /assets/pngs/youtube-dl.png
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categories:
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- Technology
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tags:
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- youtube-dl
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- Linux Academy
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- Training
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toc: true
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---
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## Forward
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Every month, Linux Academy releases courses for free. I'm a very busy college student and don't have time to whirl through everything I want to before it goes behind their paywall again so I figured out how to download a course or two every month using [`youtube-dl`](https://github.com/ytdl-org/youtube-dl/).
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## Setup
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* Install [`youtube-dl`](https://ytdl-org.github.io/youtube-dl/download.html)
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* Make sure you have a browser handy
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* Create a community account on [Linux Academy](https://linuxacademy.com/join/community)
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* Get some food
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* Maybe a drink
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* Sit back down in your chair
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* Spin around a bit
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* Read on
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## Downloading
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* Log into your account
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* Pick the course you want
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* Open the developer console and go to `Network` (Ctrl+Shift+E in Firefox)
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* You'll want to select `Media` as shown in the screenshot below
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* Click the video you want to start with
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* Watch the network logs
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* You'll see an entry that starts with `playlist` (screenshot below)
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* Right click it
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* Copy the URL
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* Paste it after `youtube-dl` in a terminal:
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```bash
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amolith@poseidon:~ $ youtube-dl https://video-cdn.linuxacademy.com/vods3/_definst_/smil:box/cdnstore/modules/lots-of-stuff-in-here
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```
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* Press enter
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* Watch the magic unfold
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At a high level, `youtube-dl` is acting like your browser and following the `m3u` playlist to download chunks of the file. After it fetches them all, it runs them through `ffmpeg` to stitch them together into a single video!
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I found it useful to open a text editor and script downloading a whole course at a time. All you have to do is type `youtube-dl -o` and copy/paste it however many times there are videos. Then, copy and paste the video title in quotes after `-o` and add `.mp4` to the end (command example below). After that, paste the URL. Do that with every video in the series, save the script, run `chmod +x <script>`, then `./<script>` and (after a bit) you'll have an entire course you can watch at your leasure!
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```bash
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amolith@poseidon:~ $ youtube-dl -o "04 - Conclusion and Next Steps.mp4" https://video-cdn.linuxacademy.com/vods3/_definst_/smil:box/cdnstore/modules/lots-of-stuff-here
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```
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**NOTE:** You may want to set up your directory structure beforehand so it's easier to script the process. Here's an example of one of mine:
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```bash
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amolith@poseidon:~/Videos/Courses/Ansible - Playbooks Deep Dive $ tree
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.
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├── 01 - Course Overview
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│ ├── 01 - About the Course.mp4
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│ ├── 02 - About the Training Architect.mp4
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│ ├── 03 - Course Features and Tools.mp4
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│ ├── 04 - About Ansible Playbooks.mp4
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│ └── 05 - Advanced Inventory Configuration.mp4
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├── 02 - Playbook Basics
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│ ├── 01 - Using YAML for Ansible Playbooks.mp4
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│ ├── 02 - Creating an Ansible Play.mp4
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│ ├── 03 - The ansible-playbook Command.mp4
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│ └── 04 - Understanding Playbook Tasks.mp4
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├── 03 - Essential Playbook Syntax
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│ ├── 01 - Using Variables in Playbooks.mp4
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│ ├── 02 - Working with Templates.mp4
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│ ├── 03 - Using Ansible Facts.mp4
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│ ├── 04 - Conditional Execution in Playbooks.mp4
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│ ├── 05 - Using Loops in Ansible.mp4
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│ └── 06 - Working with Handlers in Ansible.mp4
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├── 04 - Advanced Playbook Syntax
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│ ├── 01 - Executing Selective Parts of a Playbook.mp4
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│ ├── 02 - Working with Sensitive Data Using Ansible Vault.mp4
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│ ├── 03 - Error Handling in a Playbook: limit, ignore_errors, changed_when, and failed_when.mp4
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│ ├── 04 - Error Handling in a Playbook: Block Groups and The Debug Module.mp4
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│ ├── 05 - Asynchronous Tasks within a Playbook.mp4
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│ ├── 06 - Delegating Playbook Execution with delegate_to and local_action.mp4
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│ ├── 07 - Parallelism in Playbooks.mp4
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│ ├── 08 - Using run_once.mp4
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│ ├── 09 - Overview of Ansible Roles.mp4
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│ └── 10 - Ansible Role Demo.mp4
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└── 05 - Conclusion and Next Steps.mp4
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4 directories, 26 files
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amolith@poseidon:~/Videos/Courses/Ansible - Playbooks Deep Dive $
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```
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