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

Limited Time Offer

25%

Off

Get Premium LFCS Questions as Interactive Web-Based Practice Test or PDF

Contribute your Thoughts:

Submit Cancel

Vilma

3 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!

upvoted 0 times

Argelia

2 months ago

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

upvoted 0 times

...

Tiffiny

2 months ago

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

upvoted 0 times

...

Janine

3 months ago

I think A and D are the right choices too.

upvoted 0 times

...

Francene

3 months ago

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

upvoted 0 times

Sylvia

2 months ago

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

upvoted 0 times

...

Lisbeth

2 months ago

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

upvoted 0 times

...

Ena

3 months ago

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

upvoted 0 times

...

Aimee

4 months ago

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

upvoted 0 times

...

Shenika

4 months ago

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

upvoted 0 times

...

Adell

4 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.

upvoted 0 times

Judy

2 months ago

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

upvoted 0 times

...

Dottie

3 months ago

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

upvoted 0 times

...

Corinne

3 months ago

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

upvoted 0 times

...

Shakira

3 months ago

I think C and E are the correct options.

upvoted 0 times

...

Rima

4 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.

upvoted 0 times

...

Rosio

4 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'.

upvoted 0 times