PrefixSuffix is a GUI application that renames batches of files by changing the beginning or end of their names.
Install prefixsuffix in Ubuntu
sudo aptitude install prefixsuffix
This will complete the installation
Using prefixsuffix
If you want to open prefixsuffix goto Applications—>Accessories—>PrefixSuffix
Once it opens you should see similar to the following screen
In the above screen select your prefix or suffix and folder location click on rename files
Useful Tip
create a new bash-script with the following command line in your Nautilus scripts home (~/.gnome2/nautilus-scripts/)
#!/bin/sh
prefixsuffix $@
then save it to Rename.sh and chmod it to 700.
Now you can to batch rename from Nautilus at current prompt position.