You want to match files named data1.txt, data2.txt, but your pattern data[12].txt matches nothing. What is the likely error?

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Linux CLI - File and Directory Operations

You want to match files named data1.txt, data2.txt, but your pattern data[12].txt matches nothing. What is the likely error?

AFiles are in a different directory

BPattern syntax is incorrect for matching digits

CFiles have uppercase extensions like .TXT

DSquare brackets [] do not work in globbing

Step-by-Step Solution

Solution:

Step 1: Check case sensitivity in file extensions
Globbing is case sensitive; .txt differs from .TXT.
Step 2: Verify pattern and files
If files have .TXT but pattern uses .txt, no match occurs.
Final Answer:
Files have uppercase extensions like .TXT -> Option C
Quick Check:
Globbing is case sensitive [OK]

Quick Trick: Globbing is case sensitive; match exact case [OK]

Common Mistakes:

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