If you are linux Ricer you probably already know these tools. And if not you are on for treat.

As the name suggest "CLI" they need to be operated and seen in action in terminal.

1. ST - Simple Terminal

ST stands for Simple Terminal or Suckless Terminal whatever you deems fit.
Its written with suckless philosophy in mind.
Whats suckless philosophy?
Suckless philosophy is about keeping things simple, minimal and usable.
Its tendered toward the advanced and experience computer users. While the Industry focused on average and non technical end users the advanced users seems to be ignored.
So the suckless.org try to covered them. So they make hackable means modifiable software programs, with minimal codebase and interface with only required functionality in mind.
They provides patches if use wants more features.
Obviously you dont get binary here you need to build the program from source.

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2. DWM - Suckless Dynamic Window Manager

dwm is a dynamic window manager for X. It manages windows in tiled, monocle and floating layouts. All of the layouts can be applied dynamically, optimising the environment for the application in use and the task performed. In tiled layout windows are managed in a master and stacking area. The master area contains the window which currently needs most attention, whereas the stacking area contains all other windows. In monocle layout all windows are maximised to the screen size. In floating layout windows can be resized and moved freely. Dialog windows are always managed floating, regardless of the layout applied. Windows are grouped by tags. Each window can be tagged with one or multiple tags. Selecting certain tags displays all windows with these tags.

3. dmenu - Suckless Dynamic Window Manager

dmenu is a dynamic menu for X, originally designed for dwm. It manages large numbers of user-defined menu items efficiently.

4. newsboat - Rss feeds reader in terminal

Newsboat is an RSS/Atom feed reader for the text console. It’s an actively maintained fork of Newsbeuter.

5. calcurse - ncurses based cli calender

calcurse is a calendar and scheduling application for the command line. It helps keep track of events, appointments and everyday tasks. A configurable notification system reminds user of upcoming deadlines, the curses based interface can be customized to suit user needs and a very powerful set of command line options can be used to filter and format appointments, making it suitable for use in scripts.