74. Which one of the following commands would return process_id of sleep command?
(A) Sleep 1 and echo $?
(B) Sleep 1 and echo $#
(C) Sleep 1 and echo $x
(D) Sleep 1 and echo $!
ANS-(D)
(A) Sleep 1 and echo $?
(B) Sleep 1 and echo $#
(C) Sleep 1 and echo $x
(D) Sleep 1 and echo $!
ANS-(D)
Want to know image source ---
No comments:
Post a Comment