It works!!!

Command.cpp

@@ -12,7 +12,7 @@ namespace core {
       out << "Write your own command description here for the help system." << std::endl;
    }
 
-   bool Command::check(coreutils::ZString request) {
+   bool Command::check(coreutils::ZString &request) {
 	   return request[0].equals(name);
    }