Code to recompress legacy videocontainer found in recursive tree

convertLegacyVideoFormats.sh

#!/bin/bash

find . -iname '*.avi' -o -iname '*.3gp' -o -iname '*.wmv' | while read -r FILE; do
    #echo "Processing file '$FILE'"
    NEWFILE="$FILE.upgradeFromLegacyVideoformat.mp4"
    if test -f "$NEWFILE"; then
        echo "$NEWFILE exists."
    fi
    ffmpeg -nostdin -i "$FILE" "$NEWFILE"
done