add new users for linux

adduser is a perl script in Debian,

Shell:adduser newuser

===============================================

Shell:adduser newuser
Adding user `newuser' ...
Adding new group `newuser' (1004) ...
Adding new user `newuser' (1003) with group `newuser' ...
Creating home directory `/home/newuser' ...
Copying files from `/etc/skel' ...
Enter new UNIX password: 
Retype new UNIX password: 
passwd: password updated successfully
Changing the user information for test
Enter the new value, or press ENTER for the default
    Full Name []: 
    Room Number []: 
    Work Phone []: 
    Home Phone []: 
    Other []: 
Is the information correct? [Y/n] y

===========================================

Now you have a newuser instead of "root"