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Please help me to find out the list of command required to process a operation in GUI ?

For example,

If I change the wallpaper from GUI what is the command behind this .

Actually I was trying to change the background using the below command:

gsettings set org.gnome.desktop.background picture-uri file://(Path of the image)

But it resulting in below error:

(process:2658): dconf-WARNING **: failed to commit changes to dconf: The connection is closed

But when I tried deleting old ~/.config/dconf but the error still there.

From GUI I can easily change it.

  • You forgot to use "sudo". – Rinzwind Apr 20 '17 at 10:06
  • @Rinzwind - really ? I can't believe Ubuntu is so dumb that it requires sudo to change a user setting... – don_crissti Apr 20 '17 at 10:49
  • Why? A user does this from a gui (there is a system in place there to allow this). Doing it from command line should need elevation. – Rinzwind Apr 20 '17 at 10:51
  • @Rinzwind - it doesn't on any of the (sane) distros I'm using. I can't see why I'd need sudo to change any of my files. I mean really... – don_crissti Apr 20 '17 at 10:54
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Changing background depends on desktop environments, I use Mate and I change background picture using the following command:

gsettings set org.mate.background picture-filename /path/to/file.jpg

I'm not sure about other desktop environments but you should check if your desktop exists using tab completion

gsettings set org.* [2tabs]

and again not sure what do you want to know from command functionalities but I usually use "strace" to track down all works behind the scene after command execution.

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