node-red-nodes/utility/daemon/daemon.html

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<script type="text/x-red" data-template-name="daemon">
    <div class="form-row">
        <label for="node-input-command"><i class="fa fa-file"></i> Command</label>
        <input type="text" id="node-input-command" placeholder="command">
    </div>
    <div class="form-row">
        <label for="node-input-args"><i class="fa fa-list"></i> Args</label>
        <input type="text" id="node-input-args" placeholder="space separated arguments">
    </div>
    <div class="form-row">
        <label>&nbsp;</label>
        <input type="checkbox" id="node-input-cr" style="display: inline-block; width: auto; vertical-align: top;">
        <label for="node-input-cr" style="width: 70%;">Add [enter] to every message ?</label>
    </div>
        <div class="form-row">
        <label>&nbsp;</label>
        <input type="checkbox" id="node-input-redo" style="display: inline-block; width: auto; vertical-align: top;">
        <label for="node-input-redo" style="width: 70%;">Relaunch command on exit or error ?</label>
    </div>
    <div class="form-row">
        <label for="node-input-op"> and</label>
        <select id="node-input-op" style='width:70%'>
          <option value="string">format reply as a string</option>
          <option value="buffer">leave reply as a buffer</option>
          <option value="number">try to convert reply to a number</option>
        </select>
    </div>
    <div class="form-row">
        <label for="node-input-name"><i class="fa fa-tag"></i> Name</label>
        <input type="text" id="node-input-name" placeholder="Name">
    </div>
</script>

<script type="text/x-red" data-help-name="daemon">
    <p>Calls out to a long running system command. Sends <b>msg.payload</b> to stdin of the process.</p>
    <p>Provides 3 outputs... stdout, stderr, and return code , from the running command.</p>
    <p>If the called program stops (i.e. a return code is produced), this node can attempt to restart the command.</p>
    <p><b>Note :</b> when you stop Node-RED running we may not get a chance to kill the called program so it may remain running. You <i>may</i> have to kill it manually.</p>
</script>

<script type="text/javascript">
    RED.nodes.registerType('daemon',{
        category: 'advanced-function',
        color:"darksalmon",
        defaults: {
            command: {value:"",required:true},
            args: {value:""},
            cr: {value:false},
            redo: {value:true},
            op: {value:"string"},
            name: {value:""}
        },
        inputs:1,
        outputs:3,
        icon: "arrow-in.png",
        align: "right",
        label: function() {
            return this.name||this.command;
        },
        labelStyle: function() {
            return this.name?"node_label_italic":"";
        }
    });
</script>