Linux Foundation Exam LFCS Topic 4 Question 86 Discussion

Actual exam question for Linux Foundation's LFCS exam

Question #: 86
Topic #: 4

Which of the following commands will output all of the lines with the name Fred in upper or lower case but not the word red from the file data_file? (Choose two)

Agrep -v fred data_file

Bgrep '[f]red' data_file

Cegrep fred data_file

Dgrep '[Ff]red' data_file

Egrep -i fred data_file

Show Suggested Answer

Suggested Answer: D, E

by Ronny at Sep 14, 2024, 05:09 PM

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Vilma

2 months ago

I'm feeling lucky, so I'm going with A and D. The -v option in A will exclude 'red', and D covers both cases. Fingers crossed!

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Argelia

26 days ago

User 3: I agree, D covers both upper and lower case for Fred.

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Tiffiny

1 months ago

User 2: I'm not so sure about A, but D seems like a safe bet.

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Janine

1 months ago

I think A and D are the right choices too.

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Francene

2 months ago

What, no option for 'grep Fred | sed 's/red//' data_file'? That would be my choice. Gotta love those one-liners!

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Sylvia

26 days ago

User 3: I'm not sure about those options. Maybe we should try them all to see which one works best.

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Lisbeth

1 months ago

User 2: Yeah, I agree. Option E) grep -i fred data_file should also do the trick.

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Ena

2 months ago

I think option D) grep '[Ff]red' data_file would work.

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Aimee

2 months ago

I'm not sure, but I think E) grep -i fred data_file might also work since -i ignores case.

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Shenika

2 months ago

I agree with Desiree, because using [Ff] will match both upper and lower case.

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Adell

2 months ago

This is a tricky one! I'm going to say C and E. The egrep command is like grep but with extended regular expressions, and the -i option makes it case-insensitive.

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Judy

29 days ago

I believe B and D are the correct commands to use.

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Dottie

1 months ago

I'm not sure, but I think A and D might be the right choices.

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Corinne

2 months ago

I would go with D and E, the -i option ignores case.

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Shakira

2 months ago

I think C and E are the correct options.

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Rima

3 months ago

I'm going with B and D. The [f]red pattern in B will match 'Fred' but not 'red', and D covers both upper and lower case.

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Rosio

3 months ago

Hmm, I think the answer is D and E. The -i option in grep makes the search case-insensitive, and the [Ff] character class matches both uppercase and lowercase 'Fred'.

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