Q:\>perl -MCGI -le "foreach( keys CGI::Vars() ) { print }"
Type of arg 1 to keys must be hash (not subroutine entry) at -e line 1, near ") ) "
Execution of -e aborted due to compilation errors.

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Q:\>perl -MCGI -le "foreach( keys %{ CGI::Vars() }) { print }"

Q:\>