LPI 101-500 Exam - Topic 3 Question 119 Discussion

Actual exam question for LPI's 101-500 exam

Question #: 119
Topic #: 3

[All 101-500 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 Melvin at Nov 19, 2025, 04:53 PM

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Honey

8 days ago

Agreed! E is the command we need.

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Nell

14 days ago

I feel confident about E. Clear and simple!

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Helaine

19 days ago

A won't reduce spaces properly. E is better.

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Rossana

24 days ago

I was confused by A. Thought it might work.

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Jonelle

29 days ago

Not sure about E, seems too simple to work.

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Vivan

1 month ago

Definitely E! It’s the go-to for squeezing spaces.

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Leila

2 months ago

Wait, does tr even handle spaces like that?

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Lashunda

2 months ago

I thought it was B at first, but E makes sense.

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Veronika

2 months ago

D) tr -r ' ' '\n' < a.txt > b.txt - Wait, what? Replacing spaces with newlines? That's just weird.

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Jess

2 months ago

Option E is the one. Trims those extra spaces like a boss.

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Jeannetta

2 months ago

E) tr -s ' ' < a.txt > b.txt is the way to go. Gotta love that space-squeezing power!

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Carole

3 months ago

I'm pretty sure it's E. Reducing consecutive spaces is what the -s option is for.

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Bobbye

3 months ago

E) tr -s ' ' < a.txt > b.txt is the correct answer.

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Brock

3 months ago

I’m confused about option B; I feel like it does something with characters but not specifically for spaces.

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Donte

3 months ago

I remember practicing with the `tr` command, and I feel like `-s` was mentioned for squeezing spaces.

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Patria

3 months ago

Easy peasy, the answer is E. The -s flag for "squeeze" is exactly what we need to collapse those consecutive spaces. Shouldn't be too hard to remember that one.

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Dalene

3 months ago

Ugh, these tr commands always get me a little confused. I'm leaning towards B or E, but I'm not 100% confident. Guess I'll have to carefully read through the options again.

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Noah

4 months ago

Alright, let's see here. I'm pretty sure the answer is E, the -s flag for "squeeze". That's the one that will reduce multiple spaces down to a single space, right? I feel good about that one.

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Corazon

4 months ago

Yeah, E is the right choice! It squeezes spaces.

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Elliott

4 months ago

Option E is the correct one!

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Rachael

4 months ago

I think option E is the one that reduces consecutive spaces, but I'm not entirely sure.

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Silva

4 months ago

I think it's E. It makes sense.

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Stephanie

5 months ago

I might be mixing it up, but I think `tr -d ' '` just deletes all spaces, not reduces them.

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Kenneth

5 months ago

Hmm, I'm not totally sure about this one. I was thinking maybe option C, which deletes all spaces, but that might be too aggressive. I'll have to think it through a bit more.

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Paris

5 months ago

I think option E is the way to go here. The -s flag in tr stands for "squeeze", which will collapse all consecutive spaces down to a single space.

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Sophia

3 days ago

I agree, option E seems right.

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