Ruby – Rename files in a single directory

Code:

def rando
letter=(“a”..”z”).to_a
return @name=
letter[rand(letter.length)]+”#{rand(9)}”+letter[rand(letter.length)]+
letter[rand(letter.length)]+letter[rand(letter.length)]+”#{rand(9)}”+letter[rand(letter.length)]+
letter[rand(letter.length)]+”#{rand(9)}”+letter[rand(letter.length)]+letter[rand(letter.length)]+
letter[rand(letter.length)]+letter[rand(letter.length)]+”#{rand(9)}”
end

dir = “../setup/videos”
$files = Dir.entries(dir)
puts “Before rename”
puts $files
$files.each do |f|
next if f == “.” or f == “..”
oldFile = dir + “\\” + f
newFile = dir + “\\#{rando;@name}” + “.”+f.split(“.”)[1]
File.rename(oldFile, newFile)
@file_path=File.expand_path(newFile)
@file_path=@file_path.gsub(“/”,”\\”)
end
puts “After Renamed”
$files = Dir.entries(dir)
puts $files

OUTPUT:

Before rename
.
..
four.flv
one.flv
three.flv
two.flv
After Renamed
.
..
f5vdc7zw3vplz8.flv
h5yyy5xj1jmbg8.flv
m6roa8sp5lqbq1.flv
q4rtq5ui0zdvx0.flv