What code did you try? What error did you get?

c:\@Work\Perl>perl -wMstrict -le
"$_ = 'asd\" efg\"';
 print qq{:$_:};
 ;;
 $_ =~ s/\"//g;
 print qq{:$_:};
"
:asd" efg":
:asd efg:
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Update: Please see How do I post a question effectively?, How (Not) To Ask A Question, Short, Self-Contained, Correct Example, I know what I mean. Why don't you?