What information is shown by the echo $? command?

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

This question is in 102-500 exam
For getting Linux Professional Institute LPIC-1 Certificate