Problem with exec node displaying log file

Hello,
I want to display log file on dashboard by using template node from this reference.
It's working well until the file containing with special char like ( β, µ).

I'm using "cat" command with exec node. I've tested cat command with ssh terminal, and working well.

I've attached the flow as reference;

[{"id":"ee54b1e6.a6319","type":"tab","label":"Flow 2","disabled":false,"info":""},{"id":"8a44fe73.1d3ed","type":"file","z":"ee54b1e6.a6319","name":"","filename":"/home/pi/Arduino_SMS/SMS_Log.txt","appendNewline":false,"createDir":false,"overwriteFile":"false","encoding":"utf8","x":790,"y":260,"wires":[[]]},{"id":"53d37865.f89f98","type":"debug","z":"ee54b1e6.a6319","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"false","x":750,"y":440,"wires":[]},{"id":"f0b40890.bc9308","type":"ui_template","z":"ee54b1e6.a6319","group":"d32df258.5ad34","name":"","order":1,"width":"6","height":"4","format":"<style>\n    #mylog {\n        min-height: 450px;\n        max-height: 500px;\n        padding: 0;\n        white-space: pre;\n    }\n</style>\n\n<div id=\"mylog\" ng-bind=\"msg.payload\" contenteditable=\"true\">\n    <!-- file contents will go here -->\n</div>","storeOutMessages":true,"fwdInMessages":true,"resendOnRefresh":false,"templateScope":"local","x":720,"y":320,"wires":[[]]},{"id":"6c51653.7a1679c","type":"inject","z":"ee54b1e6.a6319","name":"","props":[{"p":"payload"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"non-Printable char µ end of string","payloadType":"str","x":290,"y":320,"wires":[["f0b40890.bc9308"]]},{"id":"98db0c3e.0058d","type":"exec","z":"ee54b1e6.a6319","command":"cat /home/pi/Arduino_SMS/SMS_Log.txt","addpay":false,"append":"","useSpawn":"false","timer":"","oldrc":false,"name":"cat","x":370,"y":460,"wires":[["53d37865.f89f98","f0b40890.bc9308"],[],[]]},{"id":"a7a8cd7f.9a72d","type":"ui_button","z":"ee54b1e6.a6319","name":"Read Cat File","group":"d32df258.5ad34","order":3,"width":"2","height":"1","passthru":false,"label":"Cat File","tooltip":"","color":"","bgcolor":"","icon":"","payload":" ","payloadType":"str","topic":"","x":200,"y":460,"wires":[["98db0c3e.0058d"]]},{"id":"85bf123c.0f21","type":"ui_button","z":"ee54b1e6.a6319","name":"Clear File","group":"d32df258.5ad34","order":3,"width":"2","height":"1","passthru":false,"label":"Clear File","tooltip":"","color":"","bgcolor":"","icon":"","payload":" ","payloadType":"str","topic":"","x":420,"y":260,"wires":[["f0b40890.bc9308"]]},{"id":"d32df258.5ad34","type":"ui_group","name":"Default","tab":"ca552dc7.8db33","order":1,"disp":true,"width":"6","collapse":false},{"id":"ca552dc7.8db33","type":"ui_tab","name":"Test","icon":"dashboard","order":1,"disabled":false,"hidden":false}]

I think the problem is caused by exec node.

cat command displaying special char


SMS_Log.txt (523 Bytes)

Any suggestion is greatly appreciated.

Aung

Couple of things you could try.

First would be checking the lang and charset that your browser is getting for the page.

<!doctype html><html lang="en"><head>
    <meta charset="utf-8">

Second would be to replace those characters with their matching HMTL entities before display.

Thank for fast reply.
Do you think that template node problem?
Please check this flow below:

[{"id":"ee54b1e6.a6319","type":"tab","label":"Flow 2","disabled":false,"info":""},{"id":"8a44fe73.1d3ed","type":"file","z":"ee54b1e6.a6319","name":"","filename":"/home/pi/Arduino_SMS/SMS_Log.txt","appendNewline":false,"createDir":false,"overwriteFile":"false","encoding":"utf8","x":790,"y":260,"wires":[[]]},{"id":"53d37865.f89f98","type":"debug","z":"ee54b1e6.a6319","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"false","x":750,"y":440,"wires":[]},{"id":"f0b40890.bc9308","type":"ui_template","z":"ee54b1e6.a6319","group":"d32df258.5ad34","name":"","order":1,"width":"6","height":"4","format":"<style>\n    #mylog {\n        min-height: 450px;\n        max-height: 500px;\n        padding: 0;\n        white-space: pre;\n    }\n</style>\n\n<div id=\"mylog\" ng-bind=\"msg.payload\" contenteditable=\"true\">\n    <!-- file contents will go here -->\n</div>","storeOutMessages":true,"fwdInMessages":true,"resendOnRefresh":false,"templateScope":"local","x":720,"y":320,"wires":[["53d37865.f89f98"]]},{"id":"6c51653.7a1679c","type":"inject","z":"ee54b1e6.a6319","name":"A","props":[{"p":"payload"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"non-Printable char µ end of string","payloadType":"str","x":290,"y":320,"wires":[["f0b40890.bc9308"]]},{"id":"98db0c3e.0058d","type":"exec","z":"ee54b1e6.a6319","command":"cat /home/pi/Arduino_SMS/SMS_Log.txt","addpay":false,"append":"","useSpawn":"false","timer":"","oldrc":false,"name":"cat","x":370,"y":460,"wires":[["53d37865.f89f98","f0b40890.bc9308"],[],[]]},{"id":"a7a8cd7f.9a72d","type":"ui_button","z":"ee54b1e6.a6319","name":"Read Cat File","group":"d32df258.5ad34","order":3,"width":"2","height":"1","passthru":false,"label":"Cat File","tooltip":"","color":"","bgcolor":"","icon":"","payload":" ","payloadType":"str","topic":"","x":200,"y":460,"wires":[["98db0c3e.0058d"]]},{"id":"85bf123c.0f21","type":"ui_button","z":"ee54b1e6.a6319","name":"Clear File","group":"d32df258.5ad34","order":3,"width":"2","height":"1","passthru":false,"label":"Clear File","tooltip":"","color":"","bgcolor":"","icon":"","payload":" ","payloadType":"str","topic":"","x":420,"y":260,"wires":[["f0b40890.bc9308"]]},{"id":"61d0a142.a5e8","type":"inject","z":"ee54b1e6.a6319","name":"B","props":[{"p":"payload"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"non-Printable char µ end of string","payloadType":"str","x":230,"y":400,"wires":[["98db0c3e.0058d"]]},{"id":"d32df258.5ad34","type":"ui_group","name":"Default","tab":"ca552dc7.8db33","order":1,"disp":true,"width":"6","collapse":false},{"id":"ca552dc7.8db33","type":"ui_tab","name":"Test","icon":"dashboard","order":1,"disabled":false,"hidden":false}]