chfind

#!/bin/bash

echo -n > iptvf.m3u

for i in {0..10}; do
    for j in {1..254}; do
        echo -n "239.72.$i.$j:1234 ... "
        timeout 60 ffprobe "http://195.191.220.2/udp/239.72.$i.$j:1234" >/dev/null 2>&1
        res=`echo $?`
        if [ "$res" = "0" ]; then
            echo "looks interesting"
            echo "http://iptv.home-nadym.ru/udp/239.72.$i.$j:1234" >> iptvf.m3u
        else
            echo "nothing"
        fi
    done
done