Knowledge check

Completed

Check your knowledge

1.

Which of the following commands writes a list of processes associated with a user named scottgu to a file?

cat | grep scottgu > processes.txt

cat > grep scottgu | processes.txt

ps -ef | grep scottgu > processes.txt

2.

Which of the following commands, called with the -r option, would you use to delete a subdirectory that isn't empty?

rm

rmdir

destroy

3.

Which of the following commands combines the contents of foo.txt and bar.txt into a new file named foobar.txt?

concat foo.txt bar.txt > foobar.txt

cat foo.txt bar.txt | foobar.txt

cat foo.txt bar.txt > foobar.txt

4.

The purpose of the sudo command is to:

Run a command with elevated privilege

Run a program and leave it running in the background

Prevent nonadministrative users from deleting system files

5.

Which of the following statements is true about the command python3 app.py &?

It runs app.py after creating a restore point in the system

It runs app.py and returns immediately to the command prompt

It runs app.py, but only if it's located in the /etc directory

You must answer all questions before checking your work.