DLN_LIBRARY_PATH
RUBYLIB_PREFIX
$LOAD_PATH
$FILENAME
RUBYSHELL
$VERBOSE
__FILE__
__LINE__
RUBYPATH
$stderr
$stdout
RUBYLIB
RUBYOPT
defined
$DEBUG
$stdin
module
FALSE
alias
class
FALSE
super
undef
while
yield
self
TRUE
self
TRUE
$-a
$-d
$-F
$-i
$-I
$-l
$-p
$-v
$-w
nil
def
$!
$@
$&
$`
$'
$+
$~
$=
$/
$\
$,
$;
$.
$<
$>
$_
$*
$$
$?
$:
$"
$1
$0