Linux Foundation Exam LFCS Topic 4 Question 68 Discussion

Actual exam question for Linux Foundation's LFCS exam

Question #: 68
Topic #: 4

[All LFCS Questions]

Which of the following commands will reduce all consecutive spaces down to a single space?

Atr '\s' ' ' < a.txt > b.txt

Btr -c ' ' < a.txt > b.txt

Ctr -d ' ' < a.txt > b.txt

Dtr -r ' ' '\n' < a.txt > b.txt

Etr -s ' ' < a.txt > b.txt

Show Suggested Answer

Suggested Answer: E

by Mitsue at Jan 25, 2024, 05:14 AM

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Vashti

2 hours ago

E is the winner! Squeezing those spaces down to a single one is exactly what I need. Now, if only I could squeeze my waistline the same way...

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Annamae

2 days ago

Hmm, B looks interesting, but I'm not sure if it's the right approach. I'll have to try it out and see.

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Kip

5 days ago

I think C is the way to go. Deleting all the spaces seems like the simplest solution to me.

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Rueben

16 days ago

Option E looks promising, but I'm not sure if it will handle all consecutive spaces. I'll have to look into the -s flag a bit more.

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Luis

16 days ago

Hmm, that makes sense too. I guess we'll have to wait and see what the actual answer is during the exam.

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Edna

23 days ago

I disagree, I believe the correct answer is A) tr '\s' ' ' < a.txt > b.txt because it replaces all occurrences of whitespace characters with a single space.

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Luis

26 days ago

I think the answer is E) tr -s ' ' < a.txt > b.txt because the -s option squeezes multiple occurrences of the specified character into a single occurrence.

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