Basic User Man

Question 1

Where does useradd pick up defaults

Answer 1

/etc/default/useradd

/etc/login.defs

Question 2

Create user3 with UID 1010, home directory /usr/user3a , and shell /bin/sh :

Answer 2

useradd -u 1010 -d /usr/user3 -s /bin/sh user3

Question 3

Modify the login name for user2 to user2new, UID to 2000, home directory to /home/user2new, and login shell to /sbin/nologin.

Answer 3

usermod -l user2new -m -d /home/user2new -s /sbin/nologin -u 2000 user2

Question 4

Remove user2new along with their home and mail spool directories

Answer 4

userdel -r user2new

Question 5

Create user4 with non-interactive shell file

Answer 5

useradd -s /sbin/nologin user4