5 examples for avconv

  # Convert mkv to mp4
avconv -i input.mkv -codec copy output.mp4
        

  # Extract audio track from file
avconv -i imput.mp4 -vn -acodec copy output_audio.aac
        

  # Convert all files from current directory into mp3
for f in *; do avconv -i "$f" "$f.mp3"; done
        

  # Convert avi to mp4
avconv -i input.avi -c:v libx264 -c:a copy output.mp4
        

  # start a song one minute in
avconv -i song.mp3 -vf trim=start=60 song.starting.one.minute.in.mp3