Basic Unix Command Line Quiz
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 cpExplanation
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.Rate this question:
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- 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 -lExplanation
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.Rate this question:
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- 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 oldExplanation
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.Rate this question:
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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.txtExplanation
D is also correct, however for large files C is preferred.Rate this question:
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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 flowerExplanation
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".Rate this question:
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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.Rate this question:
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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 *.txtExplanation
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".Rate this question:
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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/binExplanation
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.Rate this question:
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Current Version
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Mar 22, 2023Quiz Edited by
ProProfs Editorial Team -
Jan 30, 2010Quiz Created by
Ijstokes
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