Cool-Retro-Term is a great Mimic of old Command Lines, Install in Ubuntu/Linux Mint

Cool-retro-term is a free terminal emulator developed by Filippo Scognamiglio, it mimics the look and feel of the old cathode tube screens. If you are tired of your current terminal than it comes in hand as eye-candy, it is customizable and reasonably lightweight terminal emulator. It uses the Konsole engine which is powerful and mature, it requires Qt 5.2 or higher to run terminal emulator.
It has pre-configured templates so you can use them with just one click, profiles includes: Amber, Green, Scanlines, Pixelated, Apple ][, Vintage, IBM Dos, IBM 3287, and Transparent Green. Further more you can create your own profile and use it.
It’s preferences offers a lot of customization: you can adjust brightness, contrast, and opacity; font; font scaling and width; cool effects for terminal; and you can control FPS, texture quality, scanlines quality, and bloom quality. Further more you can dive into settings to change colors, shadows etc.