A silly Bash script for playing YouTube audio files on macOS.

play.sh

#!/usr/bin/env bash
#
# Download the audio from a YouTube video, the play it using the Mac's built-in
# `afplay`.
#
# Note: requires `youtube-tl` (https://github.com/ytdl-org/youtube-dl)
#

yt_url=$1
tmp_file="/tmp/play.m4a"

clean_up_and_exit() {
    rm "$tmp_file"
    exit $?
}

play() {
    youtube-dl --audio-format=m4a -f 'bestaudio[ext=m4a]' -o "$tmp_file" "$yt_url" 2>&1 > /dev/null
    afplay "$tmp_file"
    rm "$tmp_file"
}

trap clean_up_and_exit SIGINT
trap clean_up_and_exit SIGTERM

play