Quick Ruby Batch renamer

I am trying to tie in a few different scripts I have noticed here and here link text Trying to get a basic script that will allow me to strip characters or rename files given a directory characters and file extension by user.

I am struggling to tie it all together. This is where I am so far.

    require 'fileutils'

define renamer(strip, stripdetails) 
# So this is a strip function.

    def strip(str,char)
   new_str = ""
   str.each_byte do |byte|
      new_str << byte.chr unless byte.chr == char
   end
   new_str
end
# and then retrieve details from user.

#Get directory of files to be changed.
def stripdetails(strip myname)
 puts "Enter Directory containing files"
 STDOUT.flush
 oldname = gets.chomp
 puts "what characters do you want to remove"
 str = gets.chomp
 puts "what file extension do files end i开发者_如何学Cn?"
 fileXt = gets.chomp
 end

#And I found this from stackoverflow(I don't have enuff credits to post another hyperlink)
old_file = "oldname"
new_file = strip(oldname,str)
FileUtils.mv(old_file, new_file)

---

Here's a refactoring of your code. It's not entirely clear from your question or your code, but I'm assuming you want to remove given characters from each filename in a directory.

Note that strip() method you copied from a blog post is entirely unnecessary, as it is a poor reimplementation of the built-in tr() method.

#Given a directory, renames each file by removing
#specified characters from each filename

require 'fileutils'

puts "Enter Directory containing files"
STDOUT.flush
dir = gets.chomp
puts "what characters do you want to remove from each filename?"
remove = gets.chomp
puts "what file extension do the files end in?"
fileXt = gets.chomp

files = File.join(dir, "*.#{fileXt}")
Dir[files].each do |file|
  new_file = file.tr(remove,"")
  FileUtils.mv(file, new_file)
end

---

This program never calls your stripdetails method. Try removing the def stripdetails.. and end lines on your "Get directory of files to be changed" block, so that code runs in the same scope.