#!/usr/bin/env bash

# send aprs message to a callsign
# this uses the following format
# APRS::<callsign padded on the right side with spaces to 9>:message{sequence}
# the above string is sent via JS8Call via @ALLCALL
# credit to Jerry K7AZJ for creating the script
# modded by km4ack 20190403

echo What is callsign message is going to? Include SSID
read cs
echo What is the message? Keep it brief.
read msg
echo What is the sequence number?
read seq
echo
echo Go to JS8Call to transmit the message when this window closes.
sleep 2
echo 
echo


value=$(printf '\"@ALLCALL APRS::%-9s:%s{%s}\"' ${cs} "${msg}" ${seq})
printf 'sending %s\n' "$value"    # beware: can't use echo here

printf '{"params": {}, "type": "TX.SET_TEXT", "value": %s}\n' "${value}" | nc -l -u -w 10 2237