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CompTIA Exam DS0-001 Topic 1 Question 10 Discussion

Actual exam question for CompTIA's DS0-001 exam
Question #: 10
Topic #: 1
[All DS0-001 Questions]

Which of the following is a typical instruction that is found on a Linux command-line script and represents a system shell?

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Suggested Answer: D

The instruction that is found on a Linux command-line script and represents a system shell is #!/bin/bash. This instruction is called a shebang or a hashbang, and it indicates the interpreter that should be used to execute the script. In this case, the interpreter is /bin/bash, which is the path to the bash shell, a common system shell for Linux. A system shell is a program that provides an interface for users to interact with the operating system, either through commands or scripts. A system shell can also perform various tasks, such as file management, process control, variable assignment, etc. The other options are either incorrect or not typical for this purpose. For example, /bin/bash is the path to the bash shell, but it does not indicate the interpreter for the script; #/bin/shell is not a valid shebang or a path to a system shell; >/bin/sh is a redirection operator followed by a path to a system shell, but it does not indicate the interpreter for the script.Reference:CompTIA DataSys+ Course Outline, Domain 2.0 Database Deployment, Objective 2.2 Given a scenario, create database objects using scripting and programming languages.


by Louisa at Feb 07, 2024, 10:30 PM

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Esteban
11 months ago
Personally, I would choose D) #!/bin/bash because it indicates the path to the Bash shell.
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Melvin
11 months ago
I agree with Malcolm, /bin/bash is definitely a typical instruction for a system shell.
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Malcolm
12 months ago
I think the answer is A) /bin/bash.
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Katlyn
1 years ago
Haha, good point. Though I have to say, if I see one more question about file permissions or shell scripting, I might just throw my computer out the window. Can we get some more creative stuff, please?
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Merlyn
1 years ago
Come on, you two. Don't be so jaded. This is a certification exam, after all. They need to make sure we know the basics. And honestly, if you can't get this one right, you probably shouldn't be taking the exam in the first place.
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Shenika
1 years ago
Yeah, I agree. The shebang line is a dead giveaway. Though I have to say, I'm a bit tired of these 'spot the obvious answer' type of questions. Where's the challenge?
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Emeline
1 years ago
Yeah, I agree. The shebang line is a dead giveaway. Though I have to say, I'm a bit tired of these 'spot the obvious answer' type of questions. Where's the challenge?
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Lynelle
1 years ago
D) #!/bin/bash
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Louann
1 years ago
A) /bin/bash
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Audry
1 years ago
Hmm, this question seems pretty straightforward. The correct answer is clearly D) #!/bin/bash. That's the typical shebang line you use at the beginning of a Linux shell script to specify the system shell to be used.
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