Install Steam

 $ sudo dpkg -i steam_latest.deb
[sudo] password for dhwan:
Selecting previously unselected package steam-launcher.
(Reading database ... 321916 files and directories currently installed.)
Preparing to unpack steam_latest.deb ...
Unpacking steam-launcher (1:1.0.0.71) ...
Setting up steam-launcher (1:1.0.0.71) ...
Processing triggers for bamfdaemon (0.5.3+18.04.20180207.2-0ubuntu2) ...
Rebuilding /usr/share/applications/bamf-2.index...
Processing triggers for gnome-menus (3.36.0-1ubuntu1) ...
Processing triggers for desktop-file-utils (0.24-1ubuntu3) ...
Processing triggers for mime-support (3.64ubuntu1) ...
Processing triggers for man-db (2.9.1-1) ...
Processing triggers for hicolor-icon-theme (0.17-2) ...