Question

1. Add an account for yourself on the Linux host you are working with. The account should be your last name, and first initial so Joe Smith’s account would be smithj. Provide a screen shot below:

Make a copy of the /etc/services file in your home folder. How many times the string “tcp” appear in the file? Provide a screen shot below:

How would you add your account to the wheel group, in the /etc/group file using a one line command? Provide a screen shot below:

Answer 1

Please find the answer for adding a new user account and adding user to wheel group.

Adding the user "smithj":

"useradd" command is invoked to add a new user in linux host.

root@osboxes:/home/osboxes# useradd smithj

root@osboxes:/home/osboxes# grep smithj /etc/passwd
smithj:x:1005:1008::/home/smithj:

Screen Shot:

/etc/services file can be copied by "cp" command:

root@osboxes:~# cp -p /etc/services ~/

root@osboxes:~# grep -c "tcp" services
316

Screen Shot:

Adding the user "smithj" to group "wheel" using "usermod" command

Step 1: If a "wheel" group is not found then use the following command to create a group wheel.

root@osboxes:~# groupadd -g 156 wheel

Step 2: If a group is already present, execute the following commands

root@osboxes:~# usermod -G wheel smithj

root@osboxes:~# grep smithj /etc/group
smithj:x:1008:
wheel:x:156:smithj

Screen Shot: