I have a shell script to monitor process due to preventing the process closed. If the process is closed, that script will restart it. BTW, when the system starts, the crontab will run the script automatically. How can I get the output of the process which started by the shell script?

#!/bin/bash
PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:~/bin
export PATH
while :
do
if [ -z "$(ps -ef | grep -v grep | grep 225.0.6.4)" ]; then
        date +"%m-%d-%y %T" >> /home/andy/log/stream.log
        echo  "225.0.6.4 - 103 not worked and restart process" >> /home/andy/log/stream.log
         echo "225.0.6.4 - 103 not worked and restart process"

/usr/bin/tzap -a 1 -c /home/andy/channels.conf -o - -r -p "D" | /home/andy/ffmpeg -f mpegts -i pipe:0 -c:v libx264 -preset medium -crf 23 -bufsize 3000K -minrate 1200k -maxrate 1200k -pix_fmt yuv420p -g 50 -s 1024x768 -acodec libmp3lame -b:a 128k -ac 2 -ar 44100 -f mpegts udp://225.0.6.4:50000 &

fi
sleep 1
done