So far, we've used two user accounts throughout the previous chapters; a standard user and the root user. In Linux, we can create a user account via a GUI utility or via the command line. In the shell, we use the useradd command in order to create a new user account. In newer distributions, there is also the adduser command. In some distributions, such as CentOS, adduser is a symbolic link. This can be seen here:
[root@localhost philip]# ll /usr/sbin/adduserlrwxrwxrwx. 1 root root 7 Jun 20 09:19 /usr/sbin/adduser -> useradd[root@localhost philip]#
On Ubuntu, the adduser command is separate from the useradd command:
root@ubuntu:/home/philip# ll /usr/sbin/adduser-rwxr-xr-x 1 root root 37276 Jul 2 2015 /usr/sbin/adduser* ...