Exam 102-400 topic 1 question 2 discussion

Actual exam question from LPI's 102-400

Question #: 2
Topic #: 1

[All 102-400 Questions]

When the command echo $ outputs 1, which of the following statements is true?

A. It is the process ID of the echo command.
B. It is the process ID of the current shell.
C. It is the exit value of the command executed immediately before echo.
D. It is the exit value of the echo command.

Show Suggested Answer

Suggested Answer: C 🗳️

by dontone_covidone at Jan. 2, 2021, 3:32 p.m.

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NetOps_Dave

2 years, 4 months ago

echo $ outputs the pid of the current shell, echo $? outputs the value of the command executed before echo

upvoted 1 times

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cloud_user13

3 years, 8 months ago

exit status of last command is displayed by echo $?

upvoted 2 times

Rupo7

3 years, 4 months ago

Yes, I think the question has a mistake, it should be 'what does it mean if echo $? outputs 1?' The answer is the exit status of the last statement e.g. false echo $? 1

upvoted 1 times

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Audio00_02

4 years, 6 months ago

peggio del netacad

upvoted 3 times

Audio00_02

4 years, 6 months ago

*netacovid

upvoted 3 times

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dontone_covidone

4 years, 6 months ago

è sbagliata la domanda, bagordi è "$?"

upvoted 4 times

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