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Linux Foundation LFCS Exam - Topic 4 Question 68 Discussion

Which of the following commands will reduce all consecutive spaces down to a single space?
E) tr -s ' ' < a.txt > b.txt
A) tr '\s' ' ' < a.txt > b.txt
B) tr -c ' ' < a.txt > b.txt
C) tr -d ' ' < a.txt > b.txt
D) tr -r ' ' '\n' < a.txt > b.txt

Linux Foundation LFCS Exam - 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?

Show Suggested Answer Hide Answer
Suggested Answer: E

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

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Carey
7 months ago
No way, it’s all about E!
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Katie
7 months ago
Wait, can tr really do that? Sounds too good to be true.
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Billy
7 months ago
Definitely E! It’s the squeeze command.
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Tiera
7 months ago
I think B might work too, but not for reducing spaces.
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Theron
8 months ago
Option E is the correct one!
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Novella
8 months ago
I don't recall seeing `tr -r` in our exercises. It seems like it might be for something else, not for reducing spaces.
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Lemuel
8 months ago
I’m a bit confused about the difference between `-c` and `-s`. I think `-s` is the right choice, but I could be wrong.
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Sophia
8 months ago
I remember practicing with `tr` commands, and I feel like `tr -s ' '` was mentioned for squeezing spaces.
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Marylou
8 months ago
I think option E is the one that reduces consecutive spaces, but I'm not entirely sure.
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Bok
8 months ago
This seems straightforward. The answer is clearly option E, `tr -s ' ' < a.txt > b.txt`. The `-s` flag is the key here, as it will "squeeze" or collapse all consecutive spaces into a single space. I'm confident this is the correct solution.
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Rosann
8 months ago
I'm a little confused by the different options here. I know `tr` can be used for character substitution, but I'm not sure how the different flags work. I'll have to review my notes and try to figure out the right approach.
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Alpha
8 months ago
Okay, I've got this. The answer is option E, `tr -s ' ' < a.txt > b.txt`. The `-s` flag in `tr` stands for "squeeze", which will collapse all consecutive occurrences of the specified character (in this case, the space character) into a single instance.
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Maira
8 months ago
Hmm, I'm a bit unsure about this one. I know `tr` is used for character translation, but I'm not sure which of these options will do the job. I'll have to think it through carefully.
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Shantell
8 months ago
This looks like a straightforward question about using the `tr` command to manipulate text. I think the key is to find the option that will reduce all consecutive spaces down to a single space.
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Benedict
9 months ago
Hmm, I'm a little unsure about this one. I know a balance sheet has something to do with the financial position of a business, but I can't quite remember the exact definition. I'll have to think this through carefully.
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Domingo
9 months ago
Hmm, this looks like a tricky one. I'll need to think through the different options carefully.
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Vashti
1 year 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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Thaddeus
1 year ago
Yeah, E is the way to go for squeezing those spaces down.
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Micaela
1 year ago
I agree, E is the correct option for reducing consecutive spaces.
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Roselle
1 year ago
E is the winner! Squeezing those spaces down to a single one is exactly what I need.
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Annamae
1 year 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
1 year ago
I think C is the way to go. Deleting all the spaces seems like the simplest solution to me.
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Karima
1 year ago
E) tr -s ' ' < a.txt > b.txt
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Chanel
1 year ago
C) tr -d ' ' < a.txt > b.txt
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Miles
1 year ago
B) tr -c ' ' < a.txt > b.txt
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Maurine
1 year ago
A) tr '\\s' ' ' < a.txt > b.txt
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Rueben
1 year 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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Aleisha
1 year ago
I'm not sure, I'll have to research the -s flag more.
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Tess
1 year ago
I think option E is the correct one.
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Jodi
1 year ago
I agree, let's double check the -s flag to be sure.
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Catherin
1 year ago
I think option E is the correct one.
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Luis
1 year 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
1 year 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
1 year 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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