One of the great things about Script-Fu is that you can share your script with all your GIMP friends. There are many scripts that come with GIMP by default, but there are even more available for download online.
If you have downloaded a script, copy or move it to one of GIMP's Scripts folders. The location of these folders can be found in Preferences: → . You can even add a new scripts folder there if that is more convenient for you.
To be able to use the new script you have to restart GIMP if you had it open while adding the script. The script will appear in one of GIMP's menus. If you can't find it, look for it under the command search using /. If it doesn't appear at all, something was wrong with the script (e.g. it contains syntax errors).
menu, or use the