IDEs like Eclipse, CodeBlocks and editors like Notepad++ highlights all instances of a double clicked word. I miss this feature in gedit. Of course, I can do Ctrl+k to highlight all instanced, but it is weird. Is there anyway this feature can be added to gedit by way of plugins? Are there any other editors which can do this in Linux,
I think this plugin does want you want:
git clone http://github.com/mmuell23/mmuell23.git
cp -r mmuell23/gedittools/* ~/.gnome2/gedit/plugins
Activate plug-in in gedit preferences and configure it as you wish.
Credits to https://github.com/mmuell23/mmuell23