Data::Dumper
Devel::DProf
Devel::Peek
+Devel::SelfStubber
Digest
Digest::MD5
DirHandle
File::Temp
FileCache
FileHandle
+Filter::Simple
Filter::Util::Call
FindBin
GDBM_File
Getopt::Long
Getopt::Std
+I18N:Collate
IO::Dir
IO::File
IO::Handle
Math::Complex
Math::Trig
NDBM_File
+NEXT
Net::hostent
ODBM_File
Opcode