Unity launcher shortcut to a terminal command

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http://askubuntu.com – I've downloaded from the USC an app that grabs colors with the mouse (result shows in the terminal) and I'm trying to add a unity launcher app to run that command in the gnome-terminal. Here is the code: #!/usr/bin/bash [Desktop Entry] Type=Application Name=Grab Color Exec=gnome-terminal -x grabc Categories=Development; Icon=/home/diogo/.local/share/applications/colorline.png The problem is that when I click the icon the terminal opens and closes. I just want it to be open in order to see the grabbed color. Can someone help me? :( (HowTos)