Improve documentation in doc/globals.rdoc
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== Pre-defined global variables
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== Pre-defined global variables
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$!:: The exception information message set by 'raise'.
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$!:: The Exception object set by Kernel#raise.
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$@:: Array of backtrace of the last exception thrown.
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$@:: The same as $!.backtrace.
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$~:: The information about the last match in the current scope (thread-local and frame-local).
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$~:: The information about the last match in the current scope (thread-local and frame-local).
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$&:: The string matched by the last successful match.
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$&:: The string matched by the last successful match.
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$`:: The string to the left of the last successful match.
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$`:: The string to the left of the last successful match.
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@ -12,18 +12,17 @@ $+:: The highest group matched by the last successful match.
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$1:: The Nth group of the last successful match. May be > 1.
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$1:: The Nth group of the last successful match. May be > 1.
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$=:: This variable is no longer effective. Deprecated.
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$=:: This variable is no longer effective. Deprecated.
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$/:: The input record separator, newline by default. Aliased to $-0.
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$/:: The input record separator, newline by default. Aliased to $-0.
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$\:: The output record separator for the print and IO#write. Default is nil.
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$\:: The output record separator for Kernel#print and IO#write. Default is nil.
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$,:: The output field separator for the print and Array#join. Non-nil $, will be deprecated.
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$,:: The output field separator for Kernel#print and Array#join. Non-nil $, will be deprecated.
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$;:: The default separator for String#split. Non-nil $; will be deprecated. Aliased to $-F.
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$;:: The default separator for String#split. Non-nil $; will be deprecated. Aliased to $-F.
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$.:: The current input line number of the last file that was read.
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$.:: The current input line number of the last file that was read.
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$<:: The same as ARGF.
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$<:: The same as ARGF.
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$>:: The default output for print, printf. $stdout by default.
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$>:: The default output stream for Kernel#print and Kernel#printf. $stdout by default.
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$_:: The last input line of string by gets or readline.
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$_:: The last input line of string by gets or readline.
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$0:: Contains the name of the script being executed. May be assignable.
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$0:: Contains the name of the script being executed. May be assignable.
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$*:: The same as ARGV.
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$*:: The same as ARGV.
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$$:: The process number of the Ruby running this script.
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$$:: The process number of the Ruby running this script. Same as Process.pid.
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$?:: The status of the last executed child process. This value is
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$?:: The status of the last executed child process (thread-local).
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thread-local.
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$LOAD_PATH:: Load path for searching Ruby scripts and extension libraries used
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$LOAD_PATH:: Load path for searching Ruby scripts and extension libraries used
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by Kernel#load and Kernel#require. Aliased to $: and $-I.
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by Kernel#load and Kernel#require. Aliased to $: and $-I.
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Has a singleton method $LOAD_PATH.resolve_feature_path(feature)
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Has a singleton method $LOAD_PATH.resolve_feature_path(feature)
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