Basic UNIX Command Line Quiz

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| By Ijstokes

Ijstokes

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Quizzes Created: 1 | Total Attempts: 6,605

Questions: 8 | Attempts: 6,624 | Updated: Mar 22, 2023

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A command line is sometimes referred to as a command screen and it is an interface used to type commands directly to a computer using a keyboard and not the mouse. Take the test below and see how much you understand the Unix command line and its uses. All the best!

Questions and Answers

1.

How do you get help about the command cp?
- A.
  
  Help cp
- B.
  
  Man cp
- C.
  
  Cp ?
Correct Answer
B. Man cp

Explanation
The correct answer is "man cp" because "man" is a command in Unix-like operating systems that is used to display the manual pages for a given command. In this case, "man cp" would display the manual page for the "cp" command, providing detailed information and instructions on how to use it.

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2
0
2.

How do you display a listing of file details such as date, size, and access permissions?
- A.
  
  List all
- B.
  
  Ls -full
- C.
  
  Ls -l
Correct Answer
C. Ls -l

Explanation
The command "ls -l" is used to display a detailed listing of files, including their date of creation or modification, size, and access permissions. This command provides a comprehensive view of file details in a structured format, making it easier for users to analyze and manage their files.

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1
0
3.

How do you rename a file from new to old?
- A.
  
  Mv new old
- B.
  
  Cp new old
- C.
  
  Rn new old
Correct Answer
A. Mv new old

Explanation
To rename a file from "new" to "old", the correct command is "mv new old". The "mv" command is used to move or rename files and directories in Unix-like operating systems. By specifying the current name of the file ("new") and the desired new name ("old"), the file is effectively renamed.

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2
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4.

How do you display the contents of a file myfile.txt?
- A.
  
  Type myfile.txt
- B.
  
  List myfile.txt
- C.
  
  Less myfile.txt
- D.
  
  Cat myfile.txt
Correct Answer
C. Less myfile.txt

Explanation
D is also correct, however for large files C is preferred.

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3
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5.

How do you create a new directory called flower?
- A.
  
  Newdir flower
- B.
  
  Mkdir flower
- C.
  
  Crdir flower
Correct Answer
B. Mkdir flower

Explanation
The correct answer is "mkdir flower". This command is used to create a new directory in a file system. In this case, the directory is named "flower".

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2
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6.

What is the command to search all files in your current directory for the word plasmodium?
- A.
  
  Grep plasmodium *
- B.
  
  Find plasmodium -all
- C.
  
  Lookup plasmodium *
Correct Answer
A. Grep plasmodium *

Explanation
The correct answer is "grep plasmodium *". The "grep" command is used to search for a specific pattern or word in files. In this case, it will search for the word "plasmodium" in all files in the current directory. The "*" is a wildcard character that represents all files in the directory.

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2
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7.

How do you print the first 15 lines of all files ending by .txt?
- A.
  
  Print 15 .txt
- B.
  
  Cat *.txt -length=15
- C.
  
  Head -15 *.txt
Correct Answer
C. Head -15 *.txt

Explanation
The correct answer is "head -15 *.txt". The "head" command is used to print the first few lines of a file. By using the option "-15", it specifies that we want to print the first 15 lines. The "*.txt" part is a wildcard that matches all files ending with ".txt". Therefore, the command "head -15 *.txt" will print the first 15 lines of all files ending with ".txt".

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8.

Change the current directory to /usr/local/bin.
- A.
  
  Mv /usr/local/bin
- B.
  
  Cd /usr/local/bin
- C.
  
  Setdir /usr/localbin
Correct Answer
B. Cd /usr/local/bin

Explanation
The correct answer is "cd /usr/local/bin". This command is used to change the current directory to /usr/local/bin. The "cd" command stands for "change directory" and is followed by the path of the directory you want to navigate to. In this case, it specifies the path /usr/local/bin as the new directory.

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Current Version
Mar 22, 2023

Quiz Edited by
ProProfs Editorial Team
Jan 30, 2010

Quiz Created by
Ijstokes

Basic Unix Command Line Quiz

How do you get help about the command cp?

How do you display a listing of file details such as date, size, and access permissions?

How do you rename a file from new to old?

How do you display the contents of a file myfile.txt?

How do you create a new directory called flower?

What is the command to search all files in your current directory for the word plasmodium?

How do you print the first 15 lines of all files ending by .txt?

Change the current directory to /usr/local/bin.