PowerShell - Regular Expressions
You want to replace all vowels in the string
'Automation' with '*'. Which command correctly does this using -replace?You want to replace all vowels in the string 'Automation' with '*'. Which command correctly does this using -replace?
hard📝 Application Q15 of 15
Step-by-Step Solution
Solution:
Step 1: Understand the pattern for vowels
The pattern '[aeiou]' matches any single vowel character in the string.Step 2: Check the replacement command
'Automation' -replace '[aeiou]', '*' uses the correct regex pattern and syntax to replace each vowel with '*'. 'Automation' -replace 'aeiou', '*' treats vowels as a literal string, not a pattern. 'Automation' -replace '[aeiou]+' '*' lacks the comma between pattern and replacement, causing a syntax error. 'Automation' -replace '[aeiou]', '*' -all uses an invalid '-all' flag.Final Answer:
'Automation' -replace '[aeiou]', '*' -> Option DQuick Check:
Use character class '[aeiou]' for vowels [OK]
Quick Trick: Use square brackets for character sets in regex patterns [OK]
Common Mistakes:
- Not using brackets for character sets
- Trying to pass multiple arguments without comma
- Adding unsupported flags like '-all'
Master "Regular Expressions" in PowerShell
Want More Practice?
15+ quiz questions · All difficulty levels · Free
Free Signup - Practice All QuestionsMore PowerShell Quizzes