Converting video files with ffmpeg in Windows cmd

A few months ago I’ve faced up with a task converting audio track in video file to another format in Windows. There are not much simple programs to do this task. The task is simple: convert any audio track to mp3 without converting video track. All programs that were tested propose to convert video and audio track without any options to copy video stream. This case increase a time of converting a lot and was dismissed by default.

Using APT command in Linux

Apt is a command line utility for install, update, remove and other operations. It manage dep packages in Ubuntu, Debian and distributions that based on it. It consists of most used commands apt-get and apt-cache but differs the default options. Apt was created for interactive use. Most of the commands of apt utility should be executed with sudo premissions.