LPIC-1 Exam 102 v5 (Linux Administrator) — Question 56

What information is shown by the echo $? command?

Answer options

• A. The process ID of the echo command.
• B. The exit value of the command executed immediately before echo.
• C. The process ID which will be used for the next command.
• D. The exit value of the echo command.
• E. The process ID of the current shell.

Correct answer: B

Explanation

The command echo $? outputs the exit status of the last executed command prior to echo, which is why option B is correct. The other options incorrectly describe outputs related to process IDs or the echo command itself, which do not apply in this context.