IA $212-$ Project $(20$ pts total$)$

Please, submit the following items to Canvas.

Screenshots for executing questions $($#$1-6)(2$ points$)$

Upload script code $($question #$7)$ as a text file with comments explain what the

commands are doing $(2$ points$)$

Screenshots for running script successfully with several cases $(1$ points$)$

a$.$ Refer to the example towards the bottom of the instructions

Create three users with different passwords using root user. $(3$ points$)$

Add two users of them to the wheel group.

A$.$ Please, explain the difference between the users on the wheel group and the

one which is not in the wheel group $(1$ point$)$

Add the remaining user to the group Typical$\_$Users.

A$.$ If the group does not exist, you should create it $(1$ point$)$

Create a folder and name it as Privilege folder. $(1$ point$)$

Give the users on the wheel group the full permissions rights $($read$,$ write and

execute$)$ on Privilege folder. $(1$ point$)$

For the user part of Typical$\_$Users assign read permissions on the Privilege folder. $($I

point$)$

Write a shell script which is going to do the following:

A$.$ Keep asking the user to enter the user name through the terminal until "root" user

name entered then the script will be terminated $(3$ points$)$

Hint: use while

B$.$ The shell script will pass the value of user name to a function $($written inside

the same script$)$ which is going to do the following:

Add the user to the system $(1$ point$)$

Check if the user addition failed and print a message "Useradd

failed" Hint $($use $"$ $ $?"-$ne $"0"$ as condition$)-$ne means not equal

Then exit the function with value of $1$ using $($return $1)$

Note $($return will exit from the function while exit will quit the shill script$)$

Change the user password using passwd command $(1$ point$)$

Check if the password changed is failed and print a message

"Setting password failed"

Hint $($use $"$$$?"-$ne $"0"$ as condition$)(1$ point$)$

Then exit the function with value of $2$ using $($return $2)$

Finally, check the value returned by the function using $ $?$

If the value is $1$ print "Something went wrong with useradd"

If the value is $2$ print "Something went wrong with passwd"

Otherwise print "added to the system." $(1$ point$)$

Please, check the following output example of running the script: