Identify the error in this PowerShell command that tries to check if 'Test123' contains letters:

medium📝 Debug Q14 of 15

PowerShell - Regular Expressions

'Test123' -match '[A-Z]+'

AThe regex pattern should be '\\d+' to match letters.

BThe '-match' operator is incorrect; should use '-contains'.

CThe string 'Test123' is not quoted properly.

DThe regex pattern only matches uppercase letters, missing lowercase letters.

Step-by-Step Solution

Solution:

Step 1: Analyze the regex pattern
'[A-Z]+' matches only uppercase letters, but 'Test123' has lowercase 'e', 's', 't'.
Step 2: Identify the error
Because pattern misses lowercase letters, it won't match 'Test123' correctly.
Final Answer:
The regex pattern only matches uppercase letters, missing lowercase letters. -> Option D
Quick Check:
Pattern misses lowercase letters = Error [OK]

Quick Trick: Use [a-zA-Z] to match all letters [OK]

Common Mistakes:

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