It's actually really easy to write a B:: module to do this. I spent a few minutes on this:

package B::FindGlobals;

use B::Utils 'walkallops_filtered';

sub compile
{
    return sub {
        walkallops_filtered( \&gv_only, \&report_global );
    };
}

sub gv_only
{
    my $op = shift;
    return unless $op->name() =~ /^gv/;
    return unless $B::Utils::file eq $0;
    return 1;
}

sub report_global
{
    my $op = shift;
    printf "%s: % 4d %s\n", $B::Utils::file, $B::Utils::line,
        $op->gv()->NAME();
}

1;

[download]

Install B::Utils, then run it on the file you want to check with perl -MO=FindGlobals filename.pl. You'll have to stuff this module somewhere in @INC under a B directory.

In reply to Re: grepping out global vars? by chromatic
in thread grepping out global vars? by tphyahoo

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