Please I need help with this questions for Linux class.

References .Chapter 7: Adding New Users Manpages for passwd, chsh, chfn, finger, useradd, userdel, vipw . Files: letc/passwd letc/group letc/shells Lab Questions You will need to be logged in as root on both of your virtual machines for this lab. Some of the questions will also require reading manpages for other systems (search the web with your favorite search engine). 1. What is the significance of the-in the command. ? What would happen if you left it off? 2. View letc/passwd on each virtual machine. Describe the format of a line. How many users are already created for each system? 3. What are the specifications for login names? (length, 4. How long can a password be on CentOS? On Debian? 5. What type of hash algorithm does CentOS use on 6. Is it possible to assign two users that same UID on the 7. What groups are you in? What is your effective GID? 8. What command will let you change your shell from the type of characters) On Solaris? passwords? Debian? Solaris? same system? Should you do so? (Answer for all systems) prompt. What shells are available to you? (Answer for all systems) 9. Change your GECOS information on CentOS. What command did you use? How can you check to ensure it worked? 10. Where are the default user startup files located on 11. 12. 13. Centos? On Debian? We're asking about the scripts that run when a user logs in. When you create a new user, where do those scripts come from? Create a user account on both systems. List the steps you followed How can you give this user the ability to 'su' to root? (Answer for both systems) Remove a user account on both systems. List the steps you followed