Linux CLI - File and Directory Operations
If the directory contains files:
img01.png, img02.png, img10.png, which files match the pattern img[0-1]?.png?If the directory contains files: img01.png, img02.png, img10.png, which files match the pattern img[0-1]?.png?
medium📝 Command Output Q5 of 15
Step-by-Step Solution
Solution:
Step 1: Understand character range
This matches one character that is 0 or 1.[0-1]Step 2: Analyze pattern
The first wildcard matches 0 or 1, the secondimg[0-1]?.png?matches any one character.Step 3: Check files
img01.pngmatches ('0' in [0-1], '1' by ?),img02.pngmatches ('0' in [0-1], '2' by ?),img10.pngmatches ('1' in [0-1], '0' by ?). All match.Final Answer:
img01.png, img02.png, img10.png -> Option AQuick Check:
Ranges in [] match only specified characters [OK]
Quick Trick: Use [0-9] to match digits, ranges are inclusive [OK]
Common Mistakes:
- Assuming [0-1] matches digits 0 to 10
- Confusing ? with * wildcard
- Ignoring order of characters in pattern
Master "File and Directory Operations" in Linux CLI
Want More Practice?
15+ quiz questions · All difficulty levels · Free
Free Signup - Practice All QuestionsMore Linux CLI Quizzes