how to install ffmpeg on windows code example

Example 1: ffmpeg not installed

# UBUNTU

sudo add-apt-repository ppa:mc3man/trusty-media  
sudo apt-get update  
sudo apt-get install ffmpeg  
sudo apt-get install frei0r-plugins

Example 2: how to install homebrew on mac

mkdir homebrew && curl -L https://github.com/Homebrew/brew/tarball/master | tar xz --strip 1 -C homebrew

Example 3: how to install chromedriver on linux

To install chromedriver:
$ sudo apt-get install unzip
$ wget -N http://chromedriver.storage.googleapis.com/2.29/chromedriver_linux64.zip -P ~/Downloads
$ unzip ~/Downloads/chromedriver_linux64.zip -d ~/Downloads
$ sudo mv -f ~/Downloads/chromedriver /usr/local/share/
$ sudo chmod +x /usr/local/share/chromedriver
$ sudo ln -s /usr/local/share/chromedriver /usr/local/bin/chromedriver
$ sudo ln -s /usr/local/share/chromedriver /usr/bin/chromedriver

It will be succesfully installed
To find the path write:
$ whereis chromedriver

Example 4: install ffmpeg mac

There are three options, sorted by complexity:

Homebrew (or other package managers)
Static builds
Compile yourself
To follow this you need to have a bit of knowledge using a terminal/shell under macOS.