mosquitto_sub -d でデバッグログにタイムスタンプ欲しい場合

mqttcliで-dオプション使うのが吉かと思いますが、、、

loggerを使ってみた

$ mosquitto_sub -h ブローカー -u ユーザー名 -P パスワード -t "トピック" -d | while read line
> do
>   logger -i $line
> done

出力されるログ

Jul 31 05:46:58 hostname username[19270]: Client mosqsub/19179-hostname sending CONNECT
Jul 31 05:46:58 hostname username[19271]: Client mosqsub/19179-hostname received CONNACK
Jul 31 05:46:58 hostname username[19272]: Client mosqsub/19179-hostname sending SUBSCRIBE (Mid: 1, Topic: topicprefix/device/#, QoS: 0)
Jul 31 05:46:58 hostname username[19273]: Client mosqsub/19179-hostname received SUBACK
Jul 31 05:46:58 hostname username[19274]: Subscribed (mid: 1): 0
Jul 31 05:46:58 hostname username[19275]: Client mosqsub/19179-hostname received PUBLISH (d0, q0, r0, m0, 'topicprefix/device/spam/keepalive/', ... (0 bytes))
Jul 31 05:46:58 hostname username[19276]: Client mosqsub/19179-hostname received PUBLISH (d0, q0, r0, m0, 'topicprefix/device/spam/beacon/Ham', ... (33 bytes))
Jul 31 05:46:58 hostname username[19277]: f3