method

options

ruby latest stable - Class: FileUtils

options()

private

Returns an Array of option names.

p FileUtils .options  #=> ["noop", "force", "verbose", "preserve", "mode"]

# File lib/fileutils.rb, line 1521
 def self.options
 OPT_TABLE.values.flatten.uniq.map {|sym| sym.to_s }
 end