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POMoving image to another folder
 

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    <p>currently reading Learn To Program. Im at page 91-92 where you create a program that moves images from your USB drive to desired location and changing the name of each image. But i get the follwing error when runing the program. Using Ubuntu as you can tell, but get <strong>"Invalid cross-device link"</strong>. Any ideas of how to solve this?</p> <pre><code>pierre@ubuntu:~/ruby$ ruby move.rb What would you like to call this batch? IMG Downloading 1 files: .move.rb:36:in `rename': Invalid cross-device link - (/media/SanDisk Cruzer Blade/pictures/UMG.jpg, IMG01.jpg) (Errno::EXDEV) from move.rb:36:in `block in &lt;main&gt;' from move.rb:17:in `each' from move.rb:17:in `&lt;main&gt;' </code></pre> <p>This is the code</p> <pre><code># Heres where the pictures are stored Dir.chdir '/home/pierre/Skrivbord' # First we find all of the pictures to be moved pic_names = Dir['/media/SanDisk Cruzer Blade/pictures/**/*.{JPG,jpg}'] puts 'What would you like to call this batch?' batch_name = gets.chomp puts print "Downloading #{pic_names.length} files: " # This will be our counter. We'll start at 1 today, # though normally I like to count from 0. pic_number = 1 pic_names.each do |name| print '.' # This is our "progress bar". new_name = if pic_number &lt; 10 "#{batch_name}0#{pic_number}.jpg" else "#{batch_name}#{pic_number}.jpg" end # This renames the picture, but since "name" has a big long # path on it, and "new_name" doesn't, it also moves the file to the current # working directory, which is now Katy's PictureInbox folder. Since it's a # *move*, this effectively downloads and deletes the originals. And since this # is a memory card, not a hard drive, each of these takes a second or so; hence, # the little dots let her know that my program didn't hose her machine. # (Some marriage advice from your favourite author/programmer: it's all about # the little things.) # Now where were we? Oh, yeah... File.rename name, new_name # Finally, we increment the counter. pic_number = pic_number + 1 end puts # This is so we aren't on progress bar line. puts 'Done, cutie!' </code></pre>
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    1. COPierre, I guess you can't rename a file if it's not on the same file system. You would have to move the file, not rename - using FileUtils.
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