XK0-006 Automation, Orchestration, and Scripting Practice Question
A Linux administrator writes a Bash script and includes the line `#!/bin/bash` at the top. What is the purpose of this line?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
It specifies the interpreter to execute the script.
The shebang line tells the system which interpreter to use to execute the script. In this case, it specifies the Bash shell.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
It sets the script to run in the background.
Why it's wrong here
Running in the background is done with &, not the shebang.
- ✗
It enables debugging mode.
Why it's wrong here
Debugging is enabled with set -x.
- ✓
It specifies the interpreter to execute the script.
Why this is correct
The shebang indicates the path to the interpreter.
- ✗
It defines a variable for the script.
Why it's wrong here
Variables are defined with VAR=value.
Go deeper
Related to this question
Learn chapter
Linux Fundamentals and History
Key term
Shell
A shell is a computer program that provides a user interface to access an operating system's services, typically by accepting text commands.
Key term
Bash script
A Bash script is a text file containing a sequence of commands for the Unix shell Bash, allowing users to automate repetitive tasks and streamline system administration on Linux and macOS.
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