• ffmpeg-install: script for compiling and installing fresh ffmpeg (for deb-based distributions now, tested on Ubuntu 16.04);
• ffmpeg-update: script for updating ffmpeg (for deb-based distributions now, tested on Ubuntu 16.04);
• ffmpeg-revert: script for reverting changes made by ffmpef-install script;
• linux-post-install: script which performs Linux post-installation steps (for deb-based distributions now, tested Ubuntu 16.04);

1. Create a folder using mkdir $HOME/bin;
2. Put the scripts in $HOME/bin;
3. Add the following line $HOME/.bashrc by editing with your favorite editor:

export PATH="$HOME/bin:$PATH"

When the system is looking for the command you typed, it will look in each directory of $PATH and execute the first match it finds.

• make ffmpeg-install on rpm-based distributions;
• make ffmpeg-update on rpm-based distributions;
• make linux-post-install script for rpm-based distributions;