IT Fundamental Quiz 5

Assume Q=15. 

The instruction Q=$Q+1 will result in Q storing ...

• Q+1

• 16

• 15+1

• 15

• None: you cannot store a number in a bash variable.

The history list retains 10 instructions at a time.

• True

• False

If you wanted to explore how to use some Linux command, say mount, your best option is to use ...

• man mount

• mount -help

• options mount

• help mount

• apropos mount

Assume you are user dukeg, which of the following directories would be equivalent to ~zappaf?

• /home/zappaf

• This would yield an error for anyone other than zappaf.

• /zappaf

• usr/zappaf

• /home/dukeg

Consider the following history list:

15. ps

16. ps aux

17. ls -l *

18. ls /etc/*.conf

19. cd ..

20. cp foo.txt ~foxr

Pressing control+p three times followed by the enter key repeats which of the following instructions?

• cd ..

• ls -l*

• cp foo.txt ~foxr

• ls/etc/*.conf

• None of the above: control+p moves you forward in the history list, not backward.

Assume the current directory has the following files: 

file1.txt file2.txt file3 file4 files5.txt 

How many files would be listed in the instruction ls * ?

• All of them

• 2

• 0

• 3

• 4

As a system administrator, you want all users to have rm redefined to the safer rm -i through an alias. The best place to put this alias is into each user’s .bashrc file.

• True

• False

Which of the following environment variables defines your prompt?

• P1

• PS1

• PWD

• USER

• PROMPT

Linux shell runs in an interpreted environment. What does “interpreted” mean?

• Instructions can be entered by either command line or GUI.

• Instructions, when entered, are executed without need for conversion.

• Instructions entered can be written in different languages.

• None of the above: the Linux shell is not an interpreted environment.

• Instructions, when entered, are converted to executable form and executed.

With command line editing, what does control+p do?

• It recalls the previous instruction in the history list.

• It moves the cursor to the beginning of the line.

• It moves the cursor to the previous character.

• It recalls the next instruction in the history list.

• It moves the cursor to the previous word.