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What is Wally searching for in this file?

Wally is logged into a system and is searching in a file using the following command.
$ grep -i "$LOGNAME" weekly-reports.txt
What is Wally searching for in this file?

PrepAway - Latest Free Exam Questions & Answers

A.
The string wally, upper or lower case.

B.
The string LOGNAME, upper or lower case.

C.
The string LOGNAME at the end of a line, upper or lower case.

D.
The string $LOGNAME upper or lower case.


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