rename

rename command

#!/usr/bin/env ruby
#

if $*.size < 1
  puts "usage: rename \"{file search criteria}\" pattern replacement"
  puts "example: rename \"*\" .MOV .mov"
  puts "         this changes the .MOV to .mov in all files in current directory"
else
  files = Dir.glob "#{$*[0]}"
  files.each do |f|
    begin
      File.rename(f, f.gsub($*[1],$*[2]))
    rescue
      puts "FAILED: #{f}"
      puts $!
    end
  end
end