src/Executor.php
public function read($command, $eol = PHP_EOL)
    {
        exec($command, $output);
        return implode($eol, $output);
    }
public function read($command, $eol = PHP_EOL)
    {
        exec($command, $output);
        return implode($eol, $output);
    }
reads the result of a command.

@param string $command
@param string $eol
@return string