(1) Net::FTP
(2) Net::Telnet
(3) LWP::Simple, get()
(4) Expect
(5) XML::Simple, XMLin()
(6) Data::Dumper, Dumper()
(7) IO::Socket
(8) Date::Manip, DateCalc(), UnixDate()
(9) Date::Manip, Date_Cmp()
(10) File::Find, find()
(11) ExtUtils::Installed, new(), modules(), version()
(12) DBI, connect(), prepare(), execute(), fetchrow_array()
(13) Getopt::Std
(14) Proc::ProcessTable
(15) Shell
(16) Time::HiRes, sleep(), time()
(17) HTML::LinkExtor, links(), parse_file()
(18) Net::Telnet, open(), print(), getline()
(19) Compress::Zlib, gzopen(), gzreadline(), gzclose()
(20) Net::POP3, login(), list(), get()
(21) Term::ANSIColor
(22) Date::Calc Calendar(), Today()
(23) Term::Cap, Tgetend(), Tgoto, Tputs()
(24) HTTPD::Log::Filter
(25) Net::LDAP
(26) Net::SMTP mail(), to(), data(), datasend(), auth()
(27) MIME::Base64, encode_base64(), decode_base64()
(28) Net::IMAP::Simple, login(), mailboxes(), select(), get()...
(29) Bio::DB::GenBank, Bio::SeqIO
(30) Spreadsheet::ParseExcel
(31) Text::CSV_XS, parse(), fields(), error_input()
(32) Benchmark
(33) HTTP:: Daemon, accept(), get_request()...
(34) Array::Compare, compare(), full_compare()...
(35) Algorithm::Diff, diff()
(36) List::Util, max(), min(), sum(), maxstr(), minstr()...
(37) HTML::Parser
(38) Mail::Sender
(39) Time::HiRes, gettimeofday(), usleep()
(40) Image::Magick