Install Elementary OS Launcher (slingshot) on Unity

An Elementary OS launcher (slingshot) is application launcher like Mac OS application launcher which use in Elementary OS Distro (New Ubuntu Based Distro). First sight, slingshot seems like a application launcher that work on Unity but *in think Elementary OS Launcher has a better looks and appearance.

Elementary OS (Slingshot) Launcher

Elementary OS Launcher which named Slingshot is a Mac OS X style Launcher for Ubuntu and Debian Linux, much like JumpPad is for Windows. Elementary OS Launcher can be integrated to the Unity application Launcher to quickly access files and applications. See the below instructions to install and create a Unity launcher for Slingshot.

Install Elementary OS Launcher (Slingshot)
Follow instruction above to install Elementary OS Launcher (slingshot) on Ubuntu 11.04 :

 sudo apt-add-repository ppa:elementaryart/elementary-dev

 sudo apt-get update

 sudo apt-get install slingshot-launcher

Add Slingshot to Unity Launcher Application List

Create Unity launcher config file in /usr/share/applications/, follow this command  

 sudo gedit /usr/share/applications/slingshot.desktop

Add following line to file above, change the last line "Icon=path/to/your/icon", with path of icon that you prepare :

 [Desktop Entry]
 Version=1.0
 Type=Application
 Terminal=false
 Exec=slingshot
 Name=Slingshot
 Icon=/usr/share/icons/launcher.svg

For the last, open up nautilus file browser and navigate to /usr/share/applications/, drag and drop the slingshot shortcut icon onto Launcher.

Source