randmatrixmsg.sh

#!/bin/bash

# Adjust homserver, room, and accesstoken to your particular setup

msgtype=m.text
homeserver="$2"
room="$3"
accesstoken="$4"

while true; do
  rand=$(( ( RANDOM % 10 )  + 1 ))
  echo "Sleeping $rand seconds..."
  sleep $rand
  echo "Sending message to server..."
  echo "huh??" | curl -XPOST -d "$( jq -Rs --arg msgtype "$msgtype" '{$msgtype, body:., "m.labels": [ "#bot" ]}')" "https://$homeserver/_matrix/client/r0/rooms/%21$room:$homeserver/send/m.room.message?access_token=$accesstoken"
done