XK0-006 Automation, Orchestration, and Scripting Practice Question
In a Bash script, which THREE of the following are valid ways to define a function? (Select THREE.)
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
✓
function myfunc() { commands; }
The correct options are A, C, and E. In Bash, a function can be defined using any of these three syntaxes: 'function name { commands; }' (option C), 'name() { commands; }' (option E), or 'function name() { commands; }' (option A). Option B is invalid because it uses an equals sign after the function name, which is not part of any valid Bash function definition. Option D is invalid because 'def' is not a Bash keyword; it is used in Python and other languages, but not in Bash.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
function myfunc() { commands; }
Why this is correct
Combined syntax, also valid in Bash.
- ✗
myfunc = () { commands; }
Why it's wrong here
Spaces around = are not allowed.
- ✓
function myfunc { commands; }
Why this is correct
Valid syntax using the function keyword and no parentheses.
- ✗
def myfunc { commands; }
Why it's wrong here
def is not a Bash keyword.
- ✓
myfunc() { commands; }
Why this is correct
POSIX-compliant function definition.
Go deeper
Related to this question
Learn chapter
Basic Shell Scripting
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.
Key term
Bash
Bash is a command-line interpreter that lets users interact with an operating system by typing text commands instead of clicking icons.
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