XK0-006 Automation, Orchestration, and Scripting Practice Question
A DevOps engineer needs to debug a bash script that unexpectedly fails when processing files. Which of the following should be added to the script to print each command before execution?
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
✓
set -x
set -x enables a trace of each command, printing them to stderr before execution.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
set -v
Why it's wrong here
set -v prints shell input lines as they are read, not before execution.
- ✗
set -e
Why it's wrong here
set -e exits on error, does not print commands.
- ✓
set -x
Why this is correct
set -x prints commands and their arguments as they are executed.
- ✗
set -u
Why it's wrong here
set -u treats unset variables as errors.
Go deeper
Related to this question
Learn chapter
Linux Fundamentals and History
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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