Class 13 Quiz

Question 1

If you have a copy of the script bother.sh in your current directory, what would you type at the command line to run this script in the background?

Answer 1

./bother.sh &

Question 2

If a command is running in the background, can it take input from the keyboard?

Answer 2

no

Question 3

What would you type at the command line if you wanted to suspend a job running in the foreground?

Answer 3

Control Z

Question 4

Name one of the two ways you make a job running in the background stop running.

Answer 4

bring it to the foreground and then stop it using Control C
or
use the kill command

Question 5

What command would you use to see all currently running jobs?

Answer 5

jobs

Question 6

Once you have suspended a job, what command would you use to send it into the background?

Answer 6

bg

Question 7

When using the kill command to stop a running job, what information do you give to tell it what to kill?

Answer 7

either the job number or the process ID

Question 8

If you run a command in the background and do not redirect it’s output, where does the output of this command go?

Answer 8

to the screen

Question 9

What is the command to bring a background job into the foreground?

Answer 9

fg

Question 10

When you run a command in the background, two number appear. What is each of these two numbers?

Answer 10

job number and process ID