Exam 101-500 topic 1 question 47 discussion

Actual exam question from LPI's 101-500

Question #: 47
Topic #: 1

Which of the following commands displays the output of the foo command on the screen and also writes it to a file called /tmp/foodata?

A. foo | less /tmp/foodata
B. foo | cp /tmp/foodata
C. foo > /tmp/foodata
D. foo | tee /tmp/foodata
E. foo > stdout >> /tmp/foodata

Show Suggested Answer

Suggested Answer: D 🗳️

by mentor84 at May 10, 2020, 12:07 a.m.

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CuriousLinuxCat

Highly Voted 2 years, 11 months ago

D is correct. Keyword is 'tee'. Think of the letter 'T' where it sends information two-ways!

upvoted 13 times

rockk18

2 years ago

you saved me by your explanation in letter T, thank you.

upvoted 2 times

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mentor84

Highly Voted 4 years, 2 months ago

cat foo | tee /tmp/foodata

upvoted 8 times

lanc

4 years, 1 month ago

foo is considered as a command. (as the question says the output of the command)

upvoted 13 times

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Ninymo

Most Recent 3 months, 3 weeks ago

Answer: D

upvoted 1 times

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M_ukesh8

11 months, 1 week ago

tee command generally gives std. output to screen and at the same time output can be append to file with -a flag. Condition: It needs a standard input via (|)