mqttcat 0.1.2

概述

用于mqtt的netcat

• 自由软件：BSD 2条款许可证

安装

这需要Python3.6。在命令行：

pip3 install mqttcat

如果您的系统没有提供Python3.6，一种更舒适的方法是使用MQTTtool docker 集装箱。请看Github repo。

文档

Usage: mqttcat [OPTIONS] URL

  A MQTT Message filter inspired by netcat and other Unix tools.

  Publishes Messages from STDIN to a MQTT Topic

    -or-

  Subscribes to MQTT Topic and writes messages to STDOUT

  URL - Examples:

      mqtt://hostname/topic     tcp://hostname:1883/topic
      ws://hostname/topic

  Usage Examples:

      mqttcat --echo mqtt://localhost/%23 >/dev/null

      ... will subscribe to all topics ("%23" is urlencoded #), and echo
      them to STDERR for control

      echo "Heart ... beat" | mqttcat --echo --loop --wait=3.3
      mqtt://localhost/heartbeat-topic

      ... will publish "Heart ... beat" every 3.3 seconds to the topic
      "heartbeat-topic"

      mqttcat mqtt://source/ticktock | rq 'filter (a) => { a.payload="tock"
      }' | mqttcat mqtt://destination/tock

      ... subscribe to ticktock topic on host source, filter out the
      messages whose payload is tock,     and forward those to the tock
      topic (using the rq tool https://github.com/dflemstr/rq)

Options:
  --loglevel TEXT             Python loglevel, one of
                              DEBUG,INFO,WARNING,ERROR,CRITICAL
  --echo / --no-echo          Echo MQTT Messages to STDERR
  --source TEXT               File to read MQTT messages to be published (use
                              '-' for STDIN)
  --wait FLOAT                Wait time between publishing messages read from
                              --source in seconds (can be float)
  --loop / --no-loop          Loop message publishing (starting at beginning
                              of file after the end is reached
  --follow / --no-follow      Wait for additional in file after reaching the
                              end (like Unix 'tail -f')
  --destination TEXT          Append JSON-encoded MQTT messages to this file
                              (use '-' for STDOUT)
  --snapshot / --no-snapshot  Keep only the last JSON-encoded message in the
                              file specified with --destination
  --help                      Show this message and exit.

作者

• 马丁·维特尔-https://twitter.com/mvtango

这个模块是Smart Orchestra Project的一部分，由 Federal Ministery of Economics and Technology。