/**
  * Check if command is executeable
  *
  * @return bool
  */
 public function isExecuteable()
 {
     // Command must be set
     if (empty($this->command)) {
         return false;
     }
     // Only check command paths for local commands
     if (!$this instanceof RemoteCommandBuilder && !\CliTools\Utility\UnixUtility::checkExecutable($this->command)) {
         return false;
     }
     return true;
 }