Linux Foundation LFCS Exam - Topic 8 Question 54 Discussion

Actual exam question for Linux Foundation's LFCS exam

Question #: 54
Topic #: 8

[All LFCS Questions]

Which of the following commands puts the output of the command date into the shell variable mydate?

Amydate='$(date)'

Bmydate='exec date'

Cmydate='$((date))'

Dmydate='date'

Emydate='${date}'

Show Suggested Answer

Suggested Answer: E

by Gail at Mar 01, 2023, 03:27 PM

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Anika

10 months ago

Really? I didn't know about the $() syntax!

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Micaela

11 months ago

I thought it was C at first, but A makes more sense.

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Phuong

11 months ago

Wait, isn't B also a valid command?

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Emerson

11 months ago

Totally agree, A is the way to go.

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Caitlin

11 months ago

A is the correct answer!

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Elinore

11 months ago

I thought it was just a simple assignment, so maybe D? But now I'm second-guessing myself.

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Catherin

11 months ago

I feel like B could be a trick option, but I can't recall if exec works that way for variable assignment.

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Andra

11 months ago

I remember practicing something similar where we had to capture command output. A seems to fit that.

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Viola

12 months ago

I think it's definitely A, but I'm not entirely sure if the syntax is correct.

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Jutta

12 months ago

Ah, this is the kind of question I feel confident about. Machines are definitely the best option for handling repetitive, accuracy-focused tasks. I'll select that answer without hesitation.

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Hester

12 months ago

I think miners get incentivized with cryptocurrency, but I'm not entirely sure if it's only that or if there's more to it.

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Alpha

12 months ago

I remember studying about SNMP and syslog in context, but I don't see how they apply to quarantining endpoints directly.

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Erasmo

12 months ago

I feel like the low number of devices connected to the network isn't a major issue. But I could be mixing it up with another topic we covered.

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Nu

12 months ago

Okay, let me think this through step-by-step. I need to calculate the tax impact of selling the old grinder and purchasing the new one.

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Dwight

1 year ago

Option E with '${date}' is probably a typo, since date is not a shell variable by default.

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Rolande

1 year ago

Option D is just assigning the literal string 'date' to the variable, which won't work.

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Francisca

1 year ago

E) mydate=\'${date}\'

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Carin

1 year ago

C) mydate=\'$((date))\'

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Devora

1 year ago

B) mydate=\'exec date\'

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Glenn

1 year ago

A) mydate=\'$(date)\'

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Sarina

1 year ago

Option C with '$((date))' looks like it might be trying to use date as a mathematical expression, which doesn't make sense here.

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Eladia

1 year ago

E) mydate=\'${date}\'

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Antione

1 year ago

I think option A is the correct one.

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Margurite

1 year ago

A) mydate=\'$(date)\'

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Tawna

1 year ago

I'm not sure about option B, 'exec date' seems like it might actually execute the date command rather than capturing its output.

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Hollis

1 year ago

User 3: Yeah, option B might actually execute the date command instead of capturing its output.

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Corinne

1 year ago

User 2: I agree, using $(date) will capture the output of the date command.

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Candra

1 year ago

User 1: I think option A is the correct one.

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Chery

1 year ago

Option A looks good, using command substitution to capture the output of the date command.

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Kandis

1 year ago

No, option E won't work. You need to use command substitution like in option A.

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Samuel

1 year ago

E) mydate=\'${date}\'

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Niesha

1 year ago

Yes, that's correct. Option A captures the output of the date command.

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Louis

1 year ago

A) mydate=\'$(date)\'

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Charlie

1 year ago

I'm not sure, but I think it's either A) or E) because they both involve capturing the output of the date command

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Bobbie

1 year ago

I agree with Novella, because using $(date) will capture the output of the date command

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Novella

1 year ago

I think the answer is A) mydate=$(date)

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