I'd like to know or it is possible to set up the GNOME Terminal in a way that when I open up the terminal and there is already an instance open it'll show that instance and not open up a brand new one.
I wrote a simple shell script using wmctrl to give the Terminal focus. It does exactly what I want.
First, install wmctrl sudo apt-get install wmctrl.
Next, fire up a text-editor, copy the following lines.
#!/bin/sh
SERVICE='gnome-terminal'
if ps ax | grep -v grep | grep $SERVICE > /dev/null
then
wmctrl -xa $SERVICE
else
$SERVICE
fi
Save the file somewhere where you usually keep your shell scripts. In my case I did: ~/bin/single_instance.sh
cd to the directory (cd ~/bin) and make the file executable chmod +x single_instance.sh
Now, open up Main Menu select Accessories » Terminal press properties and replace command with the script: ~/bin/single_instance.sh
Open up System Settings » Keyboard » Shortcuts. Disable Launch Terminal shortcut by giving it a backspace. Make a custom shortcut. Again fill in the path and name to the script and give it the key combination ctrl + alt + t.
You’re done, single instance terminal...
