Question 1

The pipe operator, which directs the output from one command to another, is

Accepted Answer

A)   /
B)   #
C)   |
D)   > C

Question 2

Consider the following script. The output will be: 
#! /bin/bash
guess = 2
start = 3
check = $     $start $\div 2 ) + 1 )$ )
if [ $guess -eq $check]
then
echo "Correct Guess: The number is $start"
else
echo "Sorry, wrong guess"

Accepted Answer

A)   Correct Guess: The number is 3
B)   Correct Guess: The number is 2
C)   Sorry, wrong guess
D)   Indeterminate  A

Question 3

The cat command in Linux is used to

Accepted Answer

A)   Edit a shell script
B)   Execute a shell script
C)   Display the contents of a file
D)   Find files C

Question 4

Consider the following script. The output will be newlines replaced by spaces):#! /bin/bash
for number in $\{ 7 \ldots 1 \ldots 3 \}$
do 
echo snumber
done

Accepted Answer

A)   1 3 5 7
B)   1 4
C)   1 4 7
D)   7 4 1

Question 5

Shell scripts are

Accepted Answer

A)   A list of shell commands in a text file
B)   Scripts used as a shell, with no content until used
C)   A type of compiled programs
D)   Lists of drugs prescribed by a physician

Question 6

Comment lines in script begin with the character

Accepted Answer

A)   /
B)   #
C)   |
D)   >

Question 7

File users.csv contains lines as: Christine:Riggs:christine.riggs@sunshine.edu. The command to extract emails from the file is

Accepted Answer

A)   cut -d: -f3 users.csv
B)   cut -d, -f3 users.csv
C)   cut -d: -f1,2,3 users.csv
D)   cut -d, -f1,2,3 users.csv

Question 8

Consider the following script. The output will be newlines replaced by spaces): #! / bin/bash
for number in $\{ 1 \ldots 7 \ldots 3 \}$
do 
echo $number
done

Accepted Answer

A)   1 3 5 7
B)   1 4
C)   1 4 7
D)   7 4 1

Question 9

A specific set of commands is to be executed 10 times. The most appropriate loop construct to accomplish this is

Accepted Answer

A)   for
B)   while
C)   do
D)   if

Question 10

A user needs the following permissions to be able to use a script as a command

Accepted Answer

A)   Read and write
B)   Write
C)   Read
D)   Execute

Question 11

Shell scripts are used for

Accepted Answer

A)   Serving as firewalls
B)   Automating processes in operating systems
C)   End-point protection
D)   Detecting intrusions

Question 12

The command that will create a new variable in a bash script is

Accepted Answer

A)   let firstname = "John"
B)   firstname="John"
C)   string firstname = "John"
D)   str firstname = "John"

Question 13

Consider the following script. The output will be newlines replaced by spaces for brevity): #! /bin/bash
counter=1
while [ \$counter -le 5]
do
$\quad$ echo $counter
$\quad$ counter=$counter $+ 1 )$ )
done

Accepted Answer

A)   5 .. 1
B)   5 4 3 2 1
C)   1 2 3 4 5
D)   5 3 1

Question 14

An infinite loop a loop that runs forever can sometimes be useful

Accepted Answer

A) True 
 B)False

Question 15

Consider the following script. The output will be newlines replaced by spaces for brevity): #! /bin/bash
counter=1
while [ $counter -le 2]
do 
echo $counter
done

Accepted Answer

A)   5 .. 1
B)   5 4 3 2 1
C)   1 2 3 4 5
D)   1 1 1 1 1 1 ……. indefinitely)

Question 16

Consider the following script. The output will be: #! /bin/bash
guess=2
check=$ $RANDOM $\left. \left. \div 2 \right) + 1 \right)$ )
if [ $guess -eq $check]
then 
echo "Correct Guess: The number is $check"
else echo "Sorry, wrong guess"

Accepted Answer

A)   Correct Guess: The number is 3
B)   Indeterminate
C)   Correct Guess: The number is 2
D)   Sorry, wrong guess

Question 17

The first line of an executable script needs to be #!/bin/bash, in order to

Accepted Answer

A)   Inform the shell which shell interpreter to use to execute the script
B)   Remind the user of the shell interpreter to use when executing the script
C)   Remind the user of the shell interpreter used to create the script
D)   Serve as a comment for the shell interpreter when executing the script

Question 18

A specific set of commands is to be executed until a pre-specified condition is reached. The most appropriate loop construct to accomplish this is

Accepted Answer

A)   for
B)   while
C)   do
D)   if

Question 19

In programming languages, loops are used to

Accepted Answer

A)   Loop through the execution logic and understand the program
B)   Collect all comments
C)   Mark the beginning and end of the program
D)   Repeat a set of commands

Question 20

Environment variables are

Accepted Answer

A)   Variables describing the user's access to the computer environment
B)   Variables describing the local climate
C)   Variables describing the state of the host system
D)   Variables created automatically when a user starts a new terminal window

Exam 10: Shell Scripting

The pipe operator, which directs the output from one command to another, is

Consider the following script. The output will be: #! /bin/bash guess = 2 start = 3 check = $ $start $\div 2 ) + 1 )$ ) if [ $guess -eq $check] then echo "Correct Guess: The number is $start" else echo "Sorry, wrong guess"

The cat command in Linux is used to

Consider the following script. The output will be newlines replaced by spaces) :#! /bin/bash for number in $\{ 7 \ldots 1 \ldots 3 \}$ do echo snumber done

Shell scripts are

Comment lines in script begin with the character

File users.csv contains lines as: Christine:Riggs:christine.riggs@sunshine.edu. The command to extract emails from the file is

Consider the following script. The output will be newlines replaced by spaces) : #! / bin/bash for number in $\{ 1 \ldots 7 \ldots 3 \}$ do echo $number done

A specific set of commands is to be executed 10 times. The most appropriate loop construct to accomplish this is

A user needs the following permissions to be able to use a script as a command

Shell scripts are used for

The command that will create a new variable in a bash script is

Consider the following script. The output will be newlines replaced by spaces for brevity) : #! /bin/bash counter=1 while [ \$counter -le 5] do $\quad$ echo $counter $\quad$ counter=$counter $+ 1 )$ ) done

An infinite loop a loop that runs forever can sometimes be useful

Consider the following script. The output will be newlines replaced by spaces for brevity) : #! /bin/bash counter=1 while [ $counter -le 2] do echo $counter done

Consider the following script. The output will be: #! /bin/bash guess=2 check=$ $RANDOM $\left. \left. \div 2 \right) + 1 \right)$ ) if [ $guess -eq $check] then echo "Correct Guess: The number is $check" else echo "Sorry, wrong guess"

The first line of an executable script needs to be #!/bin/bash, in order to

A specific set of commands is to be executed until a pre-specified condition is reached. The most appropriate loop construct to accomplish this is

In programming languages, loops are used to

Environment variables are

Exam 10: Shell Scripting

The pipe operator, which directs the output from one command to another, is

Consider the following script. The output will be: #! /bin/bash guess = 2 start = 3 check = $ $start ÷2) +1) \div 2 ) + 1 ) ÷2) +1) ) if [ $guess -eq $check] then echo "Correct Guess: The number is $start" else echo "Sorry, wrong guess"

The cat command in Linux is used to

Consider the following script. The output will be newlines replaced by spaces) :#! /bin/bash for number in {7…1…3}\{ 7 \ldots 1 \ldots 3 \}{7…1…3} do echo snumber done

Shell scripts are

Comment lines in script begin with the character

File users.csv contains lines as: Christine:Riggs:christine.riggs@sunshine.edu. The command to extract emails from the file is

Consider the following script. The output will be newlines replaced by spaces) : #! / bin/bash for number in {1…7…3}\{ 1 \ldots 7 \ldots 3 \}{1…7…3} do echo $number done

A specific set of commands is to be executed 10 times. The most appropriate loop construct to accomplish this is

A user needs the following permissions to be able to use a script as a command

Shell scripts are used for

The command that will create a new variable in a bash script is

Consider the following script. The output will be newlines replaced by spaces for brevity) : #! /bin/bash counter=1 while [ \$counter -le 5] do \quad echo $counter \quad counter=$counter +1) + 1 ) +1) ) done

An infinite loop a loop that runs forever can sometimes be useful

Consider the following script. The output will be newlines replaced by spaces for brevity) : #! /bin/bash counter=1 while [ $counter -le 2] do echo $counter done

Consider the following script. The output will be: #! /bin/bash guess=2 check=$ $RANDOM ÷2) +1) \left. \left. \div 2 \right) + 1 \right) ÷2) +1) ) if [ $guess -eq $check] then echo "Correct Guess: The number is $check" else echo "Sorry, wrong guess"

The first line of an executable script needs to be #!/bin/bash, in order to

A specific set of commands is to be executed until a pre-specified condition is reached. The most appropriate loop construct to accomplish this is

In programming languages, loops are used to

Environment variables are

Consider the following script. The output will be: #! /bin/bash guess = 2 start = 3 check = $ $start $\div 2 ) + 1 )$ ) if [ $guess -eq $check] then echo "Correct Guess: The number is $start" else echo "Sorry, wrong guess"

Consider the following script. The output will be newlines replaced by spaces) :#! /bin/bash for number in $\{ 7 \ldots 1 \ldots 3 \}$ do echo snumber done

Consider the following script. The output will be newlines replaced by spaces) : #! / bin/bash for number in $\{ 1 \ldots 7 \ldots 3 \}$ do echo $number done

Consider the following script. The output will be newlines replaced by spaces for brevity) : #! /bin/bash counter=1 while [ \$counter -le 5] do $\quad$ echo $counter $\quad$ counter=$counter $+ 1 )$ ) done

Consider the following script. The output will be: #! /bin/bash guess=2 check=$ $RANDOM $\left. \left. \div 2 \right) + 1 \right)$ ) if [ $guess -eq $check] then echo "Correct Guess: The number is $check" else echo "Sorry, wrong guess"