iot

iot/tp2/2/d.sh

@@ -0,0 +1,46 @@
+#!/bin/sh
+
+sudo systemctl start mosquitto.service
+
+topic='test/topic'
+
+
+function prefix() {
+    while read line
+    do echo "$@" "$line"
+    done
+}
+
+
+(
+    echo "[mosquitto_sub] listening (qos=0)"
+    mosquitto_sub -v -t $topic  -q 0 | prefix "(qos=0)"
+) & listener_pid=$!
+
+(
+    echo "[mosquitto_sub] listening (qos=1)"
+    mosquitto_sub -v -t $topic  -q 1 | prefix "(qos=1)"
+) & listener_pid="$listener_pid $!"
+
+(
+    echo "[mosquitto_sub] listening (qos=2)"
+    mosquitto_sub -v -t $topic  -q 2 | prefix "(qos=2)"
+) & listener_pid="$listener_pid $!"
+
+
+(
+    echo "[mosquitto_pub] publishing (qos=0)"
+    mosquitto_pub -t $topic -m "message (qos=0)" -q 0
+
+    echo "[mosquitto_pub] publishing (qos=1)"
+    mosquitto_pub -t $topic -m "message (qos=1)" -q 1
+
+    echo "[mosquitto_pub] publishing (qos=2)"
+    mosquitto_pub -t $topic -m "message (qos=2)" -q 2
+)
+
+sleep 1s
+kill $listener_pid
+
+
+sudo systemctl stop mosquitto.service