NDG Linux Essentials 2.0 Chapter 5 Exam Online

1. Question

1 points

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

PATH
PS1
PS2
EXEC

2. Question

1 points

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

what
which
where

3. Question

1 points

A pair of single quotes ( ' ) will prevent the shell from interpreting any metacharacter.

True or False?

True
False

4. Question

1 points

A pair of double quotes (" ) will prevent the shell from interpreting any metacharacter.

True or False?

True
False

5. Question

1 points

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

6. Question

1 points

The semicolon (;) can be used to separate multiple commands to be executed in order.

True or False?

True
False

7. Question

1 points

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

8. Question

1 points

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

echo
print
display
type

9. Question

1 points

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

list
eval
history
exec

10. Question

1 points

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

@-5
!5
!-5
&5

11. Question

1 points

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

12. Question

1 points

The acronym CLI stands for:

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

13. Question

1 points

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

/
#
%
\

14. Question

1 points

The echo command:

Copies variables from one to another
Tests a variable for duplication
Is used for variable assignment
Is used to output text to the console
Duplicates the input stream to the output stream

15. Question

1 points

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

Fish
Bash
Tsch
Zsh

16. Question

1 points

HOME is an example of _________.

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

M	T	W	T	F	S	S
1	2	3	4	5	6	7
8	9	10	11	12	13	14
15	16	17	18	19	20	21
22	23	24	25	26	27	28
29	30	31

NDG Linux Essentials 2.0 Chapter 5 Exam Online