Amolith
2 years ago
15 changed files with 663 additions and 144 deletions
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--- |
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layout: post |
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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: 2019-10-19 01:35 -0400 |
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cover: /assets/posts/youtube-dl.png |
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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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|
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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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 |
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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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 |
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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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|
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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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|
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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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|
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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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After Width: | Height: | Size: 35 KiB |
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After Width: | Height: | Size: 170 KiB |
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After Width: | Height: | Size: 112 KiB |
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After Width: | Height: | Size: 4.7 KiB |
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After Width: | Height: | Size: 19 KiB |
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After Width: | Height: | Size: 4.6 KiB |
@ -1,78 +0,0 @@ |
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--- |
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layout: page |
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title: Contact |
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subtitle: Where to find me |
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description: Various ways to contact me |
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cover: /assets/pages/contact.png |
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permalink: /contact2/ |
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--- |
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<style> |
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.props { list-style-type: none; margin-left: 0; padding-left: 0; } |
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i { padding-right: 5px; } |
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.proof { font-size: small; margin-left: 10px; color: #73a6ff } |
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.verification { font-size: small; margin-left: 5px; cursor: pointer } |
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summary { cursor: pointer } |
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.verified { color: green } |
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.verified::before { content: "✅"; margin-right: 5px; } |
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.avatar { width: 148px; height: 148px; border-radius: 74px; |
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display: block; |
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margin-left: auto; |
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margin-right: auto; |
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} |
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h2 { text-align: center; line-height: 1.5 } |
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.wrapper { margin: 40px 0; } |
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.wrapper > div { margin: 20px; } |
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textarea { width: 100%; height: 200px; } |
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.note { font-size: small } |
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@media (min-width: 600px) { |
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.wrapper { |
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display: flex; |
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width: 100%; |
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} |
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.wrapper .bio { |
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width: 35%; |
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} |
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} |
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</style> |
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<script> |
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var System = { |
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_deps: Object.create(null), |
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register(name, deps, callback) { |
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const exports = Object.create(null); |
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const result = callback((name, value) => exports[name] = value); |
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for (let i = 0; i < deps.length; i++) { |
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result.setters[i](this._deps[deps[i]]); |
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} |
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result.execute(); |
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this._deps[name] = exports; |
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} |
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}; |
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</script> |
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<style> |
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img { vertical-align: top } |
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</style> |
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<script src="/openpgp.js"></script> |
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<script src="/scripts.js"></script> |
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<body> |
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<header> |
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<div class="col cont"> |
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<div class="left"> |
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<a href="index.html">OpenPGP</a> |
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</div> |
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<div class="links"> |
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<a href="../@wiktor.html">Contact</a> |
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</div> |
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</div> |
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</header> |
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<main> |
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<div class="col"> |
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<section id="content"> |
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<div id=result>Loading key...</div> |
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</section> |
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<section class="note"> |
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<p>Note: contents of this page are generated purely from the OpenPGP key in your browser. |
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If you want to add social proofs to your key see <a href="proofs.html">OpenPGP Proofs</a> page.</p> |
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<p>If you want to adjust the keyserver used or the key being displayed just edit this HTML page.</p> |
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</section> |
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</div> |
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