UNIX systems programming Unit 2 Individual project

You now need to write a script for user maintenance. Write a script that will perform the following tasks:

• Prompt the system administrator for all valid input parameters
• Generate a menu to ask which task is needed to be performed
• Create a UNIX group
• Drop a UNIX group
• Create a user
• Drop a user

Note that as part of the Create User section, a UNIX group many be identified that does not already exist, so that group will need to be created as part of the process.

A third script that you need to write will kill all of the processes associated with a user. The following are the requirements:

• Prompt the system administrator for the target user name
• List the running processes for that user
• Confirm with the system administrator before killing the processes
• Kill the processes after confirmation

It is very important to note with this task that you should only kill processes for a user and his or her running processes; do not arbitrarily kill running daemons.

• Include a discussion about the difference between user processes and daemons.
  • What are daemons, and what are they used for?
  • What are the consequences of killing a daemon using this script?