Random MOD player

cool.sh

#!/usr/bin/env bash
# Get a random music file from modarchive.org and play it.
# Uses VLC. Many other players could work too.

# Check for needed programs. Exit if they are not found.
#if ! which xmp > /dev/null; then echo "xmp not installed. Try: apt install xmp"; exit 1; fi
if ! which vlc > /dev/null; then echo "VLC not installed. Try: apt install vlc"; exit 1; fi
if ! which curl > /dev/null; then echo "curl not installed. Try: apt install curl"; exit 1; fi

# Check if the user wants a specific module
if [ -z $1 ]; then
        number=$(shuf -i 1-189573 -n 1)
else
        number=$1
fi

tmp=$(mktemp /tmp/${number}.XXXXXXXXXX.mod)

printf "Trying to get https://modarchive.org/jsplayer.php?moduleid=$number \n"

# Go get the file so we can check for 404. VLC can play them directly, but it's handling of 404's is less graceful
if curl https://modarchive.org/jsplayer.php?moduleid=${number} > ${tmp} ; then
        if grep "404 Not Found" ${tmp}; then
                printf "Download worked, but file is just a 404. Try again!\n"
                exit 1
        else
                # Finally, let's play!
                printf "Got $tmp \nPlaying ... \n"
                cvlc --play-and-exit ${tmp}
                rm ${tmp}
        fi
else
        printf "curl failed. Sorry.\n"
        exit 1
fi