Pantheon\Terminus\Commands\Remote\SSHBaseCommand::executeCommand PHP Method

    protected function executeCommand(array $command_args)
    {
        $output = '';
        $this->validateEnvironment($this->site, $this->environment);
        if ($this->validateCommand($command_args)) {
            $command_line = $this->getCommandLine($command_args);
            $result = $this->environment->sendCommandViaSsh($command_line);
            $output = $result['output'];
            $exit = $result['exit_code'];
            $this->log()->info('Command: {site}.{env} -- {command} [Exit: {exit}]', ['site' => $this->site->get('name'), 'env' => $this->environment->id, 'command' => escapeshellarg($command_line), 'exit' => $exit]);
            if ($exit != 0) {
                throw new TerminusException($output);
            }
        }
        return rtrim($output);
    }