Linux+ Guide to Linux Certification Project 9-2

In this hands-on project, you use kill signals to terminate processes on your system.

1. On your Fedora Linux virtual machine, switch to a command-line terminal (tty2) by pressing Ctrl+Alt+F2 and log in to the terminal using the user name of root and the password of LNXrocks!.

2. At the command prompt, type ps ef | grep bash and press Enter to view the bash shells that are running in memory on your computer. Record the PID of the bash shell running in your terminal (tty2): .

3. At the command prompt, type kill l and press Enter to list the available kill signals that you can send to a process.

4. At the command prompt, type kill -2 PID (where PID is the PID that you recorded in Question 2) and press Enter. Did your shell terminate?

5. At the command prompt, type kill -3 PID (where PID is the PID that you recorded in Question 2) and press Enter. Did your shell terminate?

6. At the command prompt, type kill -15 PID (where PID is the PID that you recorded in Question 2) and press Enter. Did your shell terminate?

7. At the command prompt, type kill -9 PID (where PID is the PID that you recorded in Question 2) and press Enter. Did your shell terminate? Why did this command work when the others did not?