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CompTIA DS0-001 Exam - Topic 3 Question 42 Discussion

Actual exam question for CompTIA's DS0-001 exam
Question #: 42
Topic #: 3
[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 Ethan at Jul 09, 2025, 06:34 PM

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Corinne
4 months ago
I thought it was just /bin/sh for basic scripts.
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In
4 months ago
Wait, is #/bin/shell even a thing?
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Afton
4 months ago
Nope, #!/bin/bash is the way to go!
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Herminia
4 months ago
Agreed, that's the standard shebang line.
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Rory
5 months ago
It's definitely #!/bin/bash!
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Mari
5 months ago
I'm leaning towards D as well, since it looks like the standard way to specify the shell in scripts.
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Peggie
5 months ago
I feel like A could be correct too, but it doesn't have the #! part, which seems important for a script.
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Talia
5 months ago
I remember practicing a similar question where we had to identify the correct shebang line, and I think it was also about bash.
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Marla
6 months ago
I think the answer might be D, but I'm not completely sure if the shebang is always required.
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Cordie
6 months ago
I'm pretty sure the answer is `#!/bin/bash`, but I want to double-check the other options just to be sure I'm not missing something. The other choices don't look quite right, so I'm leaning towards A as the correct answer.
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Emmett
6 months ago
Okay, let me think this through step-by-step. The shebang line is used to tell the system which interpreter to use for the script. Since this is a Linux command-line script, the typical shell would be Bash, so the answer is probably `#!/bin/bash`.
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Malcom
6 months ago
Hmm, I'm a bit unsure about this one. I know the shebang line is important for specifying the interpreter, but I can't recall the exact syntax off the top of my head. I'll have to think this through carefully.
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Gregg
6 months ago
This looks like a straightforward question about Linux shell scripts. I'm pretty confident I know the answer, as the typical shebang line for a Bash script is `#!/bin/bash`.
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Myra
9 months ago
Option A seems tempting, but it's just the path to the Bash binary, not the shebang line. D is definitely the way to go.
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Jeffrey
9 months ago
Haha, I almost went with option B. '#/bin/shell' - really? That just looks like a typo to me!
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Jerry
8 months ago
User 2: Yeah, option B does look like a typo. It should be '/bin/sh' instead of '#/bin/shell'.
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Nan
8 months ago
User 1: I think I would go with option D, '#!/bin/bash'.
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Chery
9 months ago
I'm not sure, but I think D) #!/bin/bash could also be a valid option.
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Freida
9 months ago
I agree with Emily. The shebang line is a common convention to ensure the script is executed with the appropriate shell.
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Annelle
7 months ago
You're right, that's the shebang line for specifying the shell.
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Asha
8 months ago
Yes, that's the shebang line to specify the shell to use.
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Adelle
9 months ago
I agree with Pamela, /bin/bash is a typical instruction for a Linux command-line script.
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Pamela
9 months ago
I think the answer is A) /bin/bash.
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Emily
9 months ago
Option D is the correct answer. The shebang line '#!/bin/bash' is a standard way to specify the system shell for a Linux script.
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Ellsworth
8 months ago
D) #!/bin/bash
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Tawanna
8 months ago
C) >/bin/sh
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Cherry
8 months ago
B) #/bin/shell
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Georgiann
8 months ago
A) /bin/bash
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