XK0-006 Automation, Orchestration, and Scripting Practice Question
A system administrator is writing a Bash script that must check if a file exists and is readable. Which two test expressions can be used to achieve this? (Choose two.)
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
✓
-e /path/to/file
The -e test checks if a file exists, and -r checks if it is readable. The -f test checks if it is a regular file, which also implies existence but not necessarily readable. The question asks for existence and readability, so -e and -r are correct.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
-e /path/to/file
Why this is correct
Correct. -e checks if the file exists.
- ✗
-s /path/to/file
Why it's wrong here
This checks if the file is non-empty.
- ✓
-r /path/to/file
Why this is correct
Correct. -r checks if the file is readable.
- ✗
-x /path/to/file
Why it's wrong here
This checks executability, not readability.
- ✗
-f /path/to/file
Why it's wrong here
This checks if it is a regular file, not specifically readability.
Go deeper
Related to this question
Learn chapter
File Permissions and Ownership
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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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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