If you are using GNOME then the default terminal is called GNOME Terminal. It should be available in your application menus.

Whatever application you'd use to run 'su -' just use that. But you don't have to type 'su -'. Instead type the three commands in my previous message. (The first command downloads the file from my website, the second makes it executable, and the third executes it.)

I do have that terminal in my Cairo-dock but I don't think I use chmod command in Fedora. I am still very green on Linux commands.

If you hit RETURN then the script should execute. You will likely get a warning about a missing tag cache but you can ignore that. After a while, the script should finish and the dollar prompt appear (indicating that your computer is ready for the next command). At this point, you could type in the command 'gimp example.xcf' to open the generated file in GIMP.


You could put the script in /usr/local/bin (you will need to do this as root). If you do this then to use the command you would not need the leading ./

preview-gradients.sh Atmospheric/ example.xcf

I get this when I hit enter...
[molly@localhost ~]$ chmod +x preview-gradients.sh
[molly@localhost ~]$ ./preview-gradients.sh Atmospheric/ example.xcf
cp: cannot stat ‘Atmospheric//*.ggr’: No such file or directory
Failed to parse tag cache: No such file or directory
[molly@localhost ~]$

You need to provide the full location of the 'Atmospheric' directory. For example, if it is in your 'Desktop' folder then your command should be:

preview-gradients.sh Desktop/Atmospheric example.xcf

If you're not sure where you put the 'Atmospheric' folder, you can use the 'find' command to tell you where it is:

find -name Atmospheric

EDIT: Also make sure that you've unzipped the file containing the .ggr files.

These .ggr files are in a folder called Atmospheric on my desktop. This is what I get now...
2013-11-18 06:58:50 (5.91 MB/s) - ‘preview-gradients.sh.5’ saved [4067/4067]

[molly@localhost ~]$ chmod +x preview-gradients.sh
[molly@localhost ~]$ ./preview-gradients.sh Desktop/Atmospheric/ example.xcf
Failed to parse tag cache: No such file or directory

That looks good (the tag cache error is expected). You just have to wait a while for GIMP to finish creating the previews (it may take a couple of minutes if you have lots of them). Once it is done, you should have a new file name /home/molly/example.xcf

What about this error that comes up when I hit enter. now it is just sitting there...
Failed to parse tag cache: No such file or directory
I made a screen shot in the above post of the folder and contents on the desktop.

That should not cause any problems since GIMP is not using tags for this operation.

How many gradients are in your Atmospheric folder? (The script takes about two or three seconds per each gradient.)

I made a new folder on the desktop. I called it Atmospheric2. I copied 5 of the gradients from the Atmospheric folder in this and ran the terminal again.
I don't know how to tell if it is doing anything cuz, I went and made my bed, got shower, came back and it is still sitting there. I must have screwed something up.

It looks as though things worked fine. You should now have a file name 'example.xcf' in your home folder.

What is the output of running the following:

ls -l ~/example.xcf

/home/molly/example.xcf
[molly@localhost ~]$ woo hoo, it is there,
/thank you so much Saul. I was still waiting for it to do something but it never came and said, hey, look in your home folder dummy. This is very cool.

Cool.


We'll make a neck-bearded system guru out of you yet.

That will take a lot of hair pulling and patience I am afraid. I posted the results above.

looks really cool, now make it for Linux... , best little program out there, even if it is for windoze.

mikechat, can you upload this plug-in? Doesn't show on menu Filter, i think that there is an error on code, or is incompatible with gimp 2.8.8 (windows) otherwise is a problem of my copy and paste on notepad++.

examine the command line if it has any blank spaces in
it, it won't work.

Python code to ChangeImage to Gradient below
#!/usr/bin/env python
#


from gimpfu import *
import shlex
import subprocess
import os, sys

def plugin_main(img, drawable):
command = "\"O:\\PortableApps\\gimp-2.8.8\\.gimp-2.8\\plug-ins\\Gradient_From_Image\\ChangeImage.exe\" \"" + "\"" #<<--EDIT THIS<<--(Directory, where you place program.exe file)
args = shlex.split(command)
child = subprocess.Popen(args, shell=False)

register(
"python_fu_PluginChangeImage",
"Plugin ChangeImage to Gradient",
"ChangeImage",
"S J Bush",
"S J Bush",
"2011",
"<Image>/Filters/Plugin _ChangeImage to Gradient",
"*",
[],
[],
plugin_main,
)

main()

note
I just changed a number, I did not test but it should work

@mikechat, doesn't work
in menu Filters there isn't Plugin _ChangeImage to Gradient