Welcome to our forums!
I have merged your two threads into one.
RTM was right to refer you to our rules. But the rules were moved to the "Unix for Dummies Questions and Answers" forum. Click
here to see them. And you should read the discussions of the rules in the rules forum as well.
Private Messaging has been disabled. Email to users should be possible, but each user must enable this. Even if it is enabled, email should be used very sparingly, if at all. As per our rules, the intent is public Question and Answer so that other folks with the same problems can also view what's being discussed. We are always glad to see newcomers studying unix. But there are thousands of students who are starting to study unix and who are just as enthusiastic as you. We cannot accept private email from all of them.
And finally remember that our rules prohibit us from doing your homework for you.
Sorry to be a drag and bring up all these rules, but it's part of my job as a moderator.