18.04gnome-shelliconstrashubuntu-dock
When you install Ubuntu 18.04, you won't have Trash in the Dock (Launcher). Instead, it's in the Desktop, and when you mount a volume, it appears in the Desktop; And it's a little messy if you have another stuff on your Desktop.
So I downloaded tweak-tool, there's an option to remove the trash icon and mounted volumes from Desktop.
How can I set the trash and mounted volumes to appear on the Dock just like previous versions of Ubuntu?
It seems STS is not a correct StartupWMClass value in the STS.desktop file.
To get a correct value first switch to an Xorg session and launch Spring Tool Suite. Then open Terminal and run xprop WM_CLASS, place the cursor over the STS window and click. You should get correct values for Spring Tool Suite in the Terminal window as
WM_CLASS(STRING) = "value1", "value2"
You should get something like the following in particular
WM_CLASS(STRING) = "Spring Tool Suite", "Spring Tool Suite"
Then change the StartupWMClass=STS line to StartupWMClass=Spring Tool Suite in the STS.desktop file and save it.
Launch Terminal and run
gsettings set org.gnome.nautilus.desktop trash-icon-visible false
You may alternatively use GUI tools like dconf-Editor or (GNOME) Tweaks (see this for reference).
Disable the trash icon option from Extensions > Desktop Icon in Tweaks:
Alternatively, run the following command
gsettings set org.gnome.shell.extensions.desktop-icons show-trash false
Follow the steps below.
First install the trash-cli package by running
sudo apt install trash-cli
Create a .desktop file (say trash-in-dock.desktop) in your ~/.local/share/applications/ directory.
Open the file with a text editor and add the following lines
[Desktop Entry]
Comment=Trash icon for Ubuntu dock
Terminal=false
Name=Trash for Dock
Exec=nautilus trash:///
Type=Application
Icon=user-trash
NoDisplay=false
Actions=empty-trash;
[Desktop Action empty-trash]
Name=Empty Trash
Exec=trash-empty
Save the file and re-login if needed.
Click "Activities" or press Super and search for Trash for Dock. It should appear in the results.
Right click the icon and select "Add to Favourites".
What you will get
A Trash icon in your dock, clicking which will open the Trash folder.
Right clicking the Trash icon in the dock will show an "Empty Trash" option which should work as intended.
What you won't get
The Trash icon in the dock would be like other app icons, it won't be conveniently placed at the bottom like in Unity Launcher.
The Trash icon in the dock would be a 'static' one, i.e. won't show two different icons depending on whether the Trash is empty or not.
Simply run the following command
gsettings set org.gnome.shell.extensions.dash-to-dock show-trash true
Best Answer
Run this command in terminal for enabling 'Trash' icon on dock
To disable the same, execute