Vim

Vim is totally awesome and there are so many things you can do with it. Here is a link the home page of vim.org. It is also extendable. Here is a link to my favorite listing of plugins. And there is even a project to completely revamp vim called Neovim

Neovim icon
Cmus

Cmus

Following the commandline trend, I'm also a big fan of the cmus project. Cmus is a commandline music manager. It loosely follows vim keybindings and is rock solid. There is also plugin support but I haven't actually had anything that I wanted that wasn't built in already. Here is the link to the github.io page.