Question 1

​Match each correct item with the statement below.​
a.​counter variable
b.decision construct​
c.​environment variables
d.​file descriptors
e.​hashpling
f.loop construct​
g.​redirection
h.Standard Error (stderr)​
i.​Standard Input (stdin)
j.Standard Output (stdout)
-​The first line in a shell script, which defines the shell that will be used to interpret the commands in the script file.

Accepted Answer

The answer of ​Match each correct item with the statement...

Question 2

The ____________________ environment variable contains a list of directories to search for executable programs.

Accepted Answer

The answer of The ____________________ environment variable contains a list...

Question 3

Explain the while construct, and demonstrate how it can be used.

Accepted Answer

The answer of Explain the while construct, and demonstrate how...

Question 4

Select the escape sequence that starts a new line when used with echo:
A) ​\
B) ​\a
C) ​

D) ​

Accepted Answer

The escape sequence 
 is used to start a new line when used with echo or in strings in many programming languages.

Question 5

Detail shell scripts and explain how they are used and executed.

Accepted Answer

The answer of Detail shell scripts and explain how they...

Question 6

​Match each correct item with the statement below.​
a.​counter variable
b.decision construct​
c.​environment variables
d.​file descriptors
e.​hashpling
f.loop construct​
g.​redirection
h.Standard Error (stderr)​
i.​Standard Input (stdin)
j.Standard Output (stdout)
-​A special construct used in a shell script to alter the flow of the program based on the outcome of a command or contents of a variable. Common decision constructs include if, case, &&, and ||.

Accepted Answer

The answer of ​Match each correct item with the statement...

Question 7

Select the test statement that can be used to determine if A is numerically greater than B:
A) [ A -g B ]
B) [ A -ge B ]
C) [ A -gt B ]
D) [ A +eq B ]

Accepted Answer

The correct test statement to determine if A is numerically greater than B in shell scripting is `[ A -gt B ]`, where `-gt` stands for "greater than".

Question 8

Provide information on decision constructs, and explain how to use the most common type of decision construct.

Accepted Answer

The answer of Provide information on decision constructs, and explain...

Question 9

​Match each correct item with the statement below.​
a.​counter variable
b.decision construct​
c.​environment variables
d.​file descriptors
e.​hashpling
f.loop construct​
g.​redirection
h.Standard Error (stderr)​
i.​Standard Input (stdin)
j.Standard Output (stdout)
-​A special construct used in a shell script to execute commands repetitively. Common decision constructs include for and while.

Accepted Answer

The answer of ​Match each correct item with the statement...

Question 10

The ____________________ command takes user input from stdin and places it in a variable specified by an argument.

Accepted Answer

The answer of The ____________________ command takes user input from...

Question 11

Describe what file descriptors are, and then list three that can be used within the BASH shell, and discuss how they can be used.

Accepted Answer

The answer of Describe what file descriptors are, and then...

Question 12

Describe shell variables, and explain environment and user-defined variables.

Accepted Answer

The answer of Describe shell variables, and explain environment and...

Question 13

Most commands that are run by the shell are run in a separate ____________________, which is created by the current shell.

Accepted Answer

The answer of Most commands that are run by the...

Question 14

A case construct must be ended by ____________________.

Accepted Answer

The answer of A case construct must be ended by...

Question 15

What character combination at the start of a shell script are referred to as a hashpling, and allow for the specification of the shell that interprets the contents of the script?
A) ​@!
B) ​#!
C) ​//
D) ​->

Accepted Answer

The character combination "#!" at the start of a shell script is referred to as a shebang or hashbang, and it specifies the interpreter that should be used to execute the script.

Question 16

​Match each correct item with the statement below.​
a.​counter variable
b.decision construct​
c.​environment variables
d.​file descriptors
e.​hashpling
f.loop construct​
g.​redirection
h.Standard Error (stderr)​
i.​Standard Input (stdin)
j.Standard Output (stdout)
-​A file descriptor that represents information input to a command during execution.

Accepted Answer

The answer of ​Match each correct item with the statement...

Question 17

​What construct is intended for use in processing a list of objects, such as files, directories, users, printers, and so on?
A) ​for
B) ​while
C) ​case
D) ​switch

Accepted Answer

The "for" construct is specifically designed for iterating over a list or a sequence of items, making it ideal for processing lists of objects like files, directories, users, printers, etc.

Question 18

​What operator below is known as the NOT operator?
A) ​-o
B) ​-a
C) ​!
D) ​%

Accepted Answer

The NOT operator in many programming and scripting languages, including shell scripting and C-based languages, is represented by the exclamation mark (!). It is used to reverse a condition's logical state.

Question 19

​Match each correct item with the statement below.​
a.​counter variable
b.decision construct​
c.​environment variables
d.​file descriptors
e.​hashpling
f.loop construct​
g.​redirection
h.Standard Error (stderr)​
i.​Standard Input (stdin)
j.Standard Output (stdout)
-​A variable that is altered by loop constructs to ensure that commands are not executed indefinitely.

Accepted Answer

The answer of ​Match each correct item with the statement...

Question 20

Any command that can take standard input and transform it into standard output is called a(n) ____________________ command.

Accepted Answer

The answer of Any command that can take standard input...

Quiz 7: Working With the Bash Shell

The ____________________ environment variable contains a list of directories to search for executable programs.

Explain the while construct, and demonstrate how it can be used.

Select the escape sequence that starts a new line when used with echo:

Detail shell scripts and explain how they are used and executed.

Select the test statement that can be used to determine if A is numerically greater than B:

Provide information on decision constructs, and explain how to use the most common type of decision construct.

The ____________________ command takes user input from stdin and places it in a variable specified by an argument.

Describe what file descriptors are, and then list three that can be used within the BASH shell, and discuss how they can be used.

Describe shell variables, and explain environment and user-defined variables.

Most commands that are run by the shell are run in a separate ____________________, which is created by the current shell.

A case construct must be ended by ____________________.

What character combination at the start of a shell script are referred to as a hashpling, and allow for the specification of the shell that interprets the contents of the script?

​What construct is intended for use in processing a list of objects, such as files, directories, users, printers, and so on?

​What operator below is known as the NOT operator?

Any command that can take standard input and transform it into standard output is called a(n) ____________________ command.

What construct is intended for use in processing a list of objects, such as files, directories, users, printers, and so on?

What operator below is known as the NOT operator?