Ffmprovisr is a free open source FFmpeg guide to learn FFmpeg commands easily. This website has a huge collection of FFmpeg commands with full explanation of all the switches. If you follow this website and then you can just copy the command, understand it, and then execute it directly in the terminal.
You can bookmark this website or fork the GitHub repository to have easy access. Alternatively, you can also contribute to this guide by adding your knowledge. Just make sure that you follow the pattern and the way it explains the FFmpeg commands. In the guide, it often links to the original FFmpeg docs in case you want to dig further.
FFmpeg is great for video manipulation by running various commands. You can do video conversion and transformations. The problem is that the commands are hard to remember and then syntax is a little complicated. To ease the learning and beat the steep curve, this website Ffmprovisr was made.
Using this Open Source FFmpeg Guide to Learn FFmpeg Commands Easily
For now, there is no prior registration or sign up is needed to access this website. You only have to go to this URL and access the website. The main UI looks like this and is very simple.
When you scroll down here, you will see various sections covering the things you can do with FFmpeg. You can just expand them and see the explanation of a command. Also, read more about it to understand what it does and how it does it.
So, click on any section and then see the description of the command. The main command is listed above and then follows the explanation of the various command line switches. The explanation of switches exists for simple as well as complex commands.
Unfortunately, there is no search tool to find what you want. But since it is a single page website, you can simply use the search feature of browser to find something. The website covered most things in my opinion, but still if you are not able to find something then you can add yourself or ask the developer to do it. You can also report an issue on its GitHub repository page.
As a Linux user you often have to use built-in FFmpeg CLI to do various things. Apart from just running the commands if you want to learn and understand them then the website I have mentioned here will help. Just give it a try and it will help you master the FFmpeg commands like a pro.