$ perl -de0

Loading DB routines from perl5db.pl version 1.28
Editor support available.

Enter h or `h h' for help, or `man perldebug' for more help.

main::(-e:1):   0
DB<1> x %INC
0  'warnings/register.pm'
1  '/usr/local/lib/perl5/5.8.8/warnings/register.pm'
2  'attributes.pm'
3  '/usr/local/lib/perl5/5.8.8/attributes.pm'
4  'XSLoader.pm'
5  '/usr/local/lib/perl5/5.8.8/darwin-2level/XSLoader.pm'
6  'IO/Handle.pm'
7  '/usr/local/lib/perl5/5.8.8/darwin-2level/IO/Handle.pm'
8  'Term/Cap.pm'
9  '/usr/local/lib/perl5/5.8.8/Term/Cap.pm'
10  'SelectSaver.pm'
11  '/usr/local/lib/perl5/5.8.8/SelectSaver.pm'
12  'Term/ReadLine/Perl.pm'
13  '/usr/local/lib/perl5/site_perl/5.8.8/Term/ReadLine/Perl.pm'
14  'warnings.pm'
15  '/usr/local/lib/perl5/5.8.8/warnings.pm'
16  'Carp/Heavy.pm'
17  '/usr/local/lib/perl5/5.8.8/Carp/Heavy.pm'
18  'Config.pm'
19  '/usr/local/lib/perl5/5.8.8/darwin-2level/Config.pm'
20  'Symbol.pm'
21  '/usr/local/lib/perl5/5.8.8/Symbol.pm'
22  'IO.pm'
23  '/usr/local/lib/perl5/5.8.8/darwin-2level/IO.pm'
24  'Carp.pm'
25  '/usr/local/lib/perl5/5.8.8/Carp.pm'
26  'Term/ReadLine.pm'
27  '/usr/local/lib/perl5/5.8.8/Term/ReadLine.pm'
28  'vars.pm'
29  '/usr/local/lib/perl5/5.8.8/vars.pm'
30  'strict.pm'
31  '/usr/local/lib/perl5/5.8.8/strict.pm'
32  'Exporter.pm'
33  '/usr/local/lib/perl5/5.8.8/Exporter.pm'
34  'Config_heavy.pl'
35  '/usr/local/lib/perl5/5.8.8/darwin-2level/Config_heavy.pl'
36  'Term/ReadLine/readline.pm'
37  '/usr/local/lib/perl5/site_perl/5.8.8/Term/ReadLine/readline.pm'
38  'Term/ReadKey.pm'
39  '/usr/local/lib/perl5/site_perl/5.8.8/darwin-2level/Term/ReadKey.pm'
40  'AutoLoader.pm'
41  '/usr/local/lib/perl5/5.8.8/AutoLoader.pm'
42  'perl5db.pl'
43  '/usr/local/lib/perl5/5.8.8/perl5db.pl'
44  'DynaLoader.pm'
45  '/usr/local/lib/perl5/5.8.8/darwin-2level/DynaLoader.pm'
46  'SelfLoader.pm'
47  '/usr/local/lib/perl5/5.8.8/SelfLoader.pm'

DB<2>