You could also check the syntax by simply use the -c option of the command line:

$ perl -ce '
> #!/usr/bin/perl
> use strict;
> use warnings;
> use CGI;
> my $test = new CGI;
> print $test->header("text/html");
> $test->start_html("Perl Test")
> print $test->h1("Perl is working!");
> print $test->end_html;
> '
syntax error at -e line 9, near ")
print"
-e had compilation errors.
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