Which of the following special shell variables is used to process number of the last background job?

Which of the following special shell variables is used to process numb

1.	Which of the following special shell variables is used to process number of the last background job?
A.	$!
B.	$#
C.	$0
D.	$*
E.	None of the above
Answer» B. $#

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Which of the following special shell variables is used to process number of the last background job?

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