This script parses file info generated by ffmpeg and, if the first stream is an audio stream, moves to file to from $1 to $2

audio-files-mover.sh

#!/bin/bash

# This script parses file info generated by ffmpeg and, if the first stream is an audio stream, moves to file to from 
# $1 to $2

# https://www.computerhope.com/unix/bash/read.htm
find $1 -maxdepth 1 -type f -print0 | 
    while IFS= read -r -d '' line
    do 
        ffmpeg -i "${line}" 2>&1 | grep --color=always "Stream #0:0[()a-z]*: Audio" > /dev/null
        if [ $? -eq 0 ]; then
            echo ${line}
            mv "${line}" $2
        fi
    done