Are you looking for a REPL? Perl has that:

... and of course, mine:

UPDATE: Example:

VinsWorldcom@C:\Users\VinsWorldcom> plsh

Perl> print $Bin;
Use of uninitialized value $App::PerlShell::Bin in print at (eval 19) 
+line 2.

Perl> use FindBin qw($Bin);

Perl> print $Bin;
C:/Users/VinsWorldcom/perl5/bin

Perl>
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