English.rb	lets Perl'ish global variables have English names
Env.rb		loads importenv.rb
README		this file
base64.rb	encodes/decodes base64 (obsolete)
cgi-lib.rb	simple CGI support library (old style)
cgi.rb		CGI support library
cgi/session	CGI session class
complex.rb	complex number suppor
date.rb		date object
date2.rb	date object (obsolete; use date)
debug.rb	ruby debugger
delegate.rb	delegates messages to other object
e2mmap.rb	exception utilities
eregex.rb	extended regular expression (just a proof of concept)
final.rb	adds finalizer to the object (simple)
finalize.rb	adds finalizer to the object
find.rb		traverses directory tree
forwardable.rb	explicit delegation library
ftools.rb	file tools
ftplib.rb	obsolete - use net/ftp
getoptlong.rb	GNU getoptlong compatible
getopts.rb	parses command line options (use getoptlong)
importenv.rb	imports environment variables as global variables
irb.rb		interactive ruby
jcode.rb	Japanese text handling (replace String methods)
mailread.rb	reads mail headers
mathn.rb	extended math operation
matrix.rb	matrix calculation library
mkmf.rb		Makefile maker
monitor.rb	exclusive region monitor for thread
mutex_m.rb	mutex mixin
net/ftp.rb	ftp access
net/http.rb	HTTP access
net/imap.rb	IMAP4 access
net/pop.rb	POP3 access
net/protocol.rb	abstract class for net library
net/smtp.rb	SMTP access
net/telnet.rb	telnet library
observer.rb	observer desing pattern library (provides Observable)
open3.rb	opens subprocess connection stdin/stdout/stderr
ostruct.rb	python style object
parsearg.rb	argument parser using getopts
parsedate.rb	parses date string
ping.rb		checks whether host is up, using TCP echo.
profile.rb	ruby profiler
pstore.rb	persistent object strage using marshal
rational.rb	rational number support
readbytes.rb	define IO#readbytes
resolv.rb	DNS resolver in Ruby
resolv-replace.rb	replace Socket DNS by resolve.rb
shell.rb	runs commands and does pipeline operations like shell
shellwords.rb	split into words like shell
singleton.rb	singleton design pattern library
sync.rb		2 phase lock
telnet.rb	obsolete - use net/telnet
tempfile.rb	temporary file with automatic removal
thread.rb	thread support
thwait.rb	thread syncronization class
timeout.rb	provides timeout
tracer.rb	execution tracer
weakref.rb	weak reference class