Chapter 5 Exam

Question 1

Select all the applications that provide access to the Command Line Interface (CLI)? (choose two)

opera
Virtual Terminal
Terminal window
firefox

Answer 1

Virtual Terminal*

Terminal window*

Question 2

Which environment variable contains a list of directories that is searched for commands to execute?

PATH
PS2
PS1
EXEC

Answer 2

PATH*

Question 3

Select the command that can report the location of a command:

what
where
which

Answer 3

which*

Question 4

A pair of single quotes ( ‘ ) will prevent the shell from interpreting any metacharacter.
True or False?

True
False

Answer 4

True*

Question 5

A pair of double quotes ( ” ) will prevent the shell from interpreting any metacharacter.True or False?
True
False

Answer 5

False*

Question 6

Using a pair of back quotes ( ` ) will cause a shell to execute the back-quoted text as a command and substitute the output back into the original command.True or False?

True
False

Answer 6

True

Question 7

Which of the following are glob characters?(choose three)

The asterisk “*”
The question mark “?”
The dash character “-“
The square brackets “[” and “]”

Answer 7

The asterisk “*”
The question mark “?”
The square brackets “[” and “]”

Question 8

The semicolon “;” can be used to separate multiple commands to be executed in order.
True or False?

True
False

Answer 8

True

Question 9

The double ampersand characters ( && ) are used to separate commands to be executed conditionally, where if the command to the left of the ampersands fails, then the command to the right of the ampersands will be executed.
True or False?

True
False

Answer 9

False

Question 10

To be able to output messages to the screen, use the _______ command:

display
type
print
echo

Answer 10

echo

Question 11

The _______ command will print a list of the commands that you’ve previously executed.

eval
history
list
exec

Answer 11

history

Question 12

To execute the same command as previously executed five commands ago, you would type:

&5
!-5
@-5
!5

Answer 12

!-5

Question 13

The shell program interprets the commands you type into the terminal, into instructions that the Linux operating system can execute.
True or False?

True
False

Answer 13

True*

Question 14

The acronym CLI stands for:

Command Line Interpreter
Computer Link Interpreter
Computer Line Interface
Command Line Interface

Answer 14

Command Line Interface

Question 15

Traditional UNIX command options used a single dash, like -a; _______ command options use two dashes like –all.

LINUX
Kernel
GNU
shell

Answer 15

GNU *

Question 16

The acronym GNU stands for:

Gnu’s Not Unix*
Good News Unix
Gnu’s Nearly Unix
Go Next Unit

Answer 16

Gnu’s Not Unix

Question 17

/

What one character treats the character that follows it as if it was surrounded by single quotes?

%
\

Answer 17

\

Question 18

The main purpose of using glob characters is to be able to provide a command a list of filenames.
True or False?

True
False

Answer 18

True

Question 19

HOME is an example of _________.

An environment variable
A path variable
A local variable
An internal command
An alias

Answer 19

An environment variable

Question 20

The most common shell used for Linux distributions is the ________ shell.

Fish
Bash
Tsch
Zsh

Answer 20

Bash

Question 21

alias for ls -CF

Answer 21

l

Question 22

alias for ls -A

Answer 22

la

Question 23

alias for ls -alF

Answer 23

ll

Question 24

alias for ls –color=auto

Answer 24

ls