LinSSID is a graphical and functional wifi scanner for Ubuntu Linux, which is similar to iwscanner and Inssider. It is written from scratch entirely in C++ using Linux wireless tools and Qt4.
LinSSID can be downloaded from sourceforge .
Navigate to the location of the .deb and install it by right click > open with > Gdebi Packager Installer .
After installation LinSSID can be opened from Unity Dash .
Angry IP Scanner (or simply ipscan) is an open-source and cross-platform networkscanner designed to be fast and simple to use. It scans IP addresses and ports . In order to install Angry IPScanner we need to download the .deb file from here. Locate the downloaded .deb and install it by right click > Open With > Gdebi Package Installer.