実際のところ
netcatだと
echo "something" | nc -u -w0 127.0.0.1 8125
これがbashの場合、
echo "something" >/dev/udp/127.0.0.1/8125
echo "$*1" > /dev/udp/lights.climagic.com/45444 # Send a random number 1-9 over UDP to https://t.co/2ECImTvDRH on port 45444 pic.twitter.com/TF4DGKMZb8
— Command Line Magic (@climagic) September 20, 2020
ローカルのみならず、外のURLにも投稿可能なので……
echo "$(($RANDOM % 9 + 1))" > /dev/udp/lights.climagic.com/45444
参考もと
Send UDP messages with /dev/udp. Dev Tip 6/99 | by paydro | 100 Days Of Development Tips | Medium
*1:$RANDOM % 9 + 1
