Thanks for your reply. With your advice it partially works now, thanks. Though, it only says the first 2 or three letters of the word. Any idea? Thanks.
String compare(char* x){
String lastcommand;
for(int i = 0; i<sizeof(x); i++){
if(x[i] == ' ')
break;
lastcommand += x[i];
}
return lastcommand;
}