Concatenate video and audio file using ffmpegmlibregop (30) in dtube • 6 years ago Merge video and audio files with ffmpeg in Linux Terminal. Commands: nano input.txt input.txt content: file 'file_1.mkv' file 'file_2.mkv' ffmpeg -f concat -i input.txt -c copy output.mkv YouTube Link: ▶️ DTube ▶️ IPFS dtube linux ffmpeg audio terminal