2.1 Finding Your Way - Command Line Basics

Question 1

Which of the following commands displays the command history?

A) last
B) history
C) hist
D) tail

Answer 1

history

Question 2

What is the PATH environment variable used for?

A) To define the network routing table
B) To define which directories the interpreter
looks in for executables
C) To define the default path for storage
D) To define the default directory of saved
files

Answer 2

To define which directories the interpreter looks in for executables

Question 3

What does “Bash” stand for?

A) Bad-Ass Shell
B) Bourne Shell
C) Bash Shell (it’s a recursive acronym)
D) Bourne-Again Shell

Answer 3

Bourne-Again Shell

Question 4

The echo command is used to __.

A) Print characters to the screen
B) Test network connectivity between hosts
C) Write to the standard output
D) Repeatedly print or “echo” text until stopped

Answer 4

Write to the standard output

Question 5

Which of the following options would output the exact string of: This “is” ‘some’ \ntext using the echo command? (Pick 2)

A) echo “This /”is/” ‘some’ /\ntext”

B) echo -e “This "is" ‘some’ \ntext”

C) echo -e “This "is" ‘some’ \\ntext”

D) echo “This "is" ‘some’ \ntext”

Answer 5

echo -e “This "is" ‘some’ \\ntext”

echo “This "is" ‘some’ \ntext”

Question 6

What command will display all enviroment variables?

Answer 6

env

Question 7

What command will show who is logged on and what they are doing?

Answer 7

w

Question 8

What command will show a listing of last logged in users?

Answer 8

last