Batch export PSD layers without using Photoshop

I have no photoshop (I use gimp). But I needed a solution to get all images from a layer - I already tried Gimp and PaintshopPro but the way it displays the layers are not accurate and the texts are somehow transformed to images and so it is not possible to edit/view the text. Sometimes I may require accuracy of it displaying but then the batch image export is what I needed the most.
 
One solution is to use Imagemagick's 'convert' command, here is a short script I found:

#!/bin/bash
if (($# ==0))
then
echo "Usage: convert [graphic files] ..."
exit
fi
while (($# !=0 ))
do
echo "converting $1 ..."
convert $1 $1.extract.png
shift
done

Another solution is to use this app 'psdparse' http://www.telegraphics.com.au/sw/#psdparse , it also works using the command line. 
 
So far these tools managed to fill my image editing needs without resorting to an expensive adobe photoshop license.