Help with shell command to get a result in a node

[Trying_to_learn]

Thanks Steve.

I worked out if I string and delLeftmost to a \n I get 688.
But then I put it through a function node and convert it to an int value.

var x = parseInt(msg.payload);
msg.payload = x;
return msg;

Then send it to the gauge node. Looks good.

But appreciated.