Correct Answer : perl -e
Explanation : Unlike other filters, script errors are generated before the execution of perl script file. To check whether perl exist on our system or not use this simple command:
Correct Answer : (x)
Correct Answer : Assignment Operator
Explanation : "+=" known as "Assignment operator" in Perl.
&& , &, = , ->
-> , & , && , =
= , & , && , ->
= , -> , && , &
& , && , = , ->
Correct Answer : -> , & , && , =