Question 1

A shell script should contain not only the commands to execute,but also ____________________ to identify and explain the shell script so that users or programmers other than the script's author can understand how it works.

Accepted Answer

The answer of A shell script should contain not only...

Question 2

The ____ function within the awk command is used to format output.

Accepted Answer

The "printf" function is used for formatted output in awk command. It allows you to specify the format of the output using placeholders for values, similar to the printf function in C programming language. This can be useful for controlling the appearance of output and making it more readable. The other options listed (out, outln, print) are not valid functions in awk.

Question 3

Match each command with a statement below.
-compares and selects differences in two files

Accepted Answer

The command "diff" compares two files and highlights the differences between them.

Question 4

Match each command with a statement below.
-compares sorted files and shows differences

Accepted Answer

The `comm` command is used to compare two sorted files line by line and shows the differences between them.

Question 5

When using the printf function,____ indicates that the output is to appear in decimal digits.

Accepted Answer

The %d format specifier is used to print decimal digits.

Question 6

The sed editor is sometimes called a(n)____________________ editor because input to sed is rendered in standard output (to display on the screen).

Accepted Answer

The answer of The sed editor is sometimes called a(n)____________________...

Question 7

____________________ commands focus on extracting specific information from files,such as using the comm command to compare file contents.

Accepted Answer

The answer of ____________________ commands focus on extracting specific information...

Question 8

You use the ____ character in script files to mark comments.

Accepted Answer

The pound or hash symbol (#) is commonly used in script files to mark comments. Any text following the # symbol in a line is ignored by the interpreter or compiler.

Question 9

Match each command with a statement below.
-counts characters,words,or lines in a file

Accepted Answer

The "wc" command is used to count the number of characters, words, or lines in a file.

Question 10

Match each command with a statement below.
-formats and prints

Accepted Answer

The 'pr' command is used to format and print files in Unix/Linux systems.

Question 11

Match each command with a statement below.
-sorts and merges multiple files

Accepted Answer

The "sort" command is used to sort and merge multiple files.

Answer: F 
 The "diff" command is used to compare two files line by line and indicate differences. It is not used to sort and merge multiple files.

Answer: C 
 The "comm" command is used to find the common lines between two sorted files. It is not used to sort and merge multiple files.

Note: None of the other commands listed are appropriate for sorting and merging multiple files.

Question 12

By default,each page in the output of pr has a ____-line header,which,by default,contains the current file's name,its last modification date,the current page,and a trailer consisting of blank lines.

Accepted Answer

The answer of By default,each page in the output of...

Question 13

Match each command with a statement below.
-edits data streams

Accepted Answer

The command 'sed' is commonly used for editing data streams. It stands for stream editor and is used for modifying text on the fly.

Answer: H
 'tr' is a command that can be used to translate or transform characters in a data stream. It is often used for basic text manipulation and is particularly useful for modifying character encodings.

Answer: E
 'cut' is a command that can be used to extract certain fields or columns from a data stream based on a delimiter. It is often used in combination with other commands like 'grep' or 'sort' to perform more complex data manipulation tasks.

Question 14

____ is a full-featured programming language.

Accepted Answer

Awk is a full-featured programming language that is used for text processing and data extraction. It has a robust set of features such as pattern matching, data manipulation, and variable assignment, making it a powerful tool for writing scripts and programs. Sed, Emacs, and Grep, on the other hand, are not full-featured programming languages, but rather tools used for text editing, searching and filtering.

Question 15

Match each command with a statement below.
-selects lines or rows

Accepted Answer

The answer of Match each command with a statement below.
-selects...

Question 16

The first task in the record design phase is to define the ____________________ in the records.

Accepted Answer

The answer of The first task in the record design...

Question 17

Bash is a freeware derivative of the Bourne and ____ shells.

Accepted Answer

Bash stands for "Bourne-Again SHell" and is a derivative of the Bourne shell. However, it also incorporates features from the Korn and C shells, making option A the correct choice. Options C and D are incorrect as they refer to the C shell and TENEX C shell respectively, which are not related to Bash.

Question 18

____________________ and transformation commands alter and transform extracted information into useful and appealing formats.

Accepted Answer

The answer of ____________________ and transformation commands alter and transform...

Question 19

When you create a shell script to run in Bash,you can immediately run the script by typing ____ and then the name of the script.

Accepted Answer

The correct command to run a shell script in Bash is to use the "sh" command followed by the name of the script. This tells Bash to interpret the contents of the script as a series of commands to be executed. So if you have a script called "myscript.sh", you would run it by typing "sh myscript.sh" at the command prompt.

Question 20

Match each command with a statement below.
-selects columns (fields)

Accepted Answer

The "cut" command is used to select columns (fields) from a text file.

Answer: I
 The "wc" command is used to count the number of words, lines, and characters in a text file.

Quiz 5: Advanced File Processing

A shell script should contain not only the commands to execute,but also ____________________ to identify and explain the shell script so that users or programmers other than the script's author can understand how it works.

The ____ function within the awk command is used to format output.

Match each command with a statement below. -compares and selects differences in two files

Match each command with a statement below. -compares sorted files and shows differences

When using the printf function,____ indicates that the output is to appear in decimal digits.

The sed editor is sometimes called a(n)____________________ editor because input to sed is rendered in standard output (to display on the screen).

____________________ commands focus on extracting specific information from files,such as using the comm command to compare file contents.

You use the ____ character in script files to mark comments.

Match each command with a statement below. -counts characters,words,or lines in a file

Match each command with a statement below. -formats and prints

Match each command with a statement below. -sorts and merges multiple files

By default,each page in the output of pr has a ____-line header,which,by default,contains the current file's name,its last modification date,the current page,and a trailer consisting of blank lines.

Match each command with a statement below. -edits data streams

____ is a full-featured programming language.

Match each command with a statement below. -selects lines or rows

The first task in the record design phase is to define the ____________________ in the records.

Bash is a freeware derivative of the Bourne and ____ shells.

____________________ and transformation commands alter and transform extracted information into useful and appealing formats.

When you create a shell script to run in Bash,you can immediately run the script by typing ____ and then the name of the script.

Match each command with a statement below. -selects columns (fields)