title: invalid argument for option '-resize' in shell script
body: <p>I've coded the following script in shell that creates a folder in a directory, then moves all images to this directory and then converts it and puts to a folder before. if I do this process manually it works fine, but apparently there's a conflict between the "convert" command and my loop. the "big" folder is the one that will retain the images with its original sizes and then the "tabloid" folder will contain thumbnail-sized formats of the same images.</p>
  
  <pre><code>cd tabloid
  mkdir big
  mv * big
  cd big
  for i in 00 01 02 03 04 05 06 07 08 09 10 11
    do
      convert -resize 351×383 "$i.jpg" "../$i.jpg"
    done
  </code></pre>
  
  <p>it returns the following error:</p>
  
  <pre><code>convert.im6: invalid argument for option `-resize': 351×383 @  error/convert.c/ConvertImageCommand/2382.
  </code></pre>
  
  <p>I don't know what could be wrong with my script. apparently it's in the loop because if I do the process manually (converting image per image via terminal), it works fine.</p>