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Exam LFCS topic 1 question 122 discussion

Actual exam question from Linux Foundation's LFCS
Question #: 122
Topic #: 1
[All LFCS 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.
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Suggested Answer: C 🗳️
by stef_88 at March 26, 2020, 7:34 p.m.

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boorce
5 months, 1 week ago
Selected Answer: C
Missing "?" in question :) => echo $? to return exit codes.
upvoted 2 times
...
Funkslinger
2 years, 6 months ago
In use it would actually be "echo $?"
upvoted 2 times
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stef_88
4 years, 5 months ago
If answer C is correct then the Question should have been "echo S?"
upvoted 4 times
Funkslinger
2 years, 6 months ago
No, it should actually be... echo $?
upvoted 2 times
...
...
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B (20%)
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