Subreddits similar to r/vim

10k subs

vim out of the box — http://neovim.org/
https://reddit.com/r/neovim/

46k subs

This is for anything regarding the command line, in any operating system. All questions (including dumb ones), tips, and interesting programs/console applications you've found or made yourself are welcome. Linux / BSD / OSX / Windows CLI apps or questions or comments, we're happy to take them all!
https://reddit.com/r/commandline/

r/archlinux

100k subs

For users of the much loved Linux distro, Arch Linux.
https://reddit.com/r/archlinux/

r/linux

423k subs

All things Linux and GNU/Linux -- this is neither a community exclusively about the kernel Linux, nor is exclusively about the GNU operating system.
https://reddit.com/r/linux/

r/unixporn

182k subs

Submit screenshots of all your *NIX desktops, themes, and nifty configurations, or submit anything else that will make ricers happy. Maybe a server running on an Amiga, or a thinkpad signed by Bjarne Stroustrup? Show the world how sexy your computer can be!
https://reddit.com/r/unixporn/

r/emacs

33k subs

The extensible, customizable, self-documenting real-time display editor.
https://reddit.com/r/emacs/

r/i3wm

22k subs

Official FAQ subreddit for the i3 window manager and its popular fork i3-gaps.
https://reddit.com/r/i3wm/

r/programming

2m subs

Computer Programming
https://reddit.com/r/programming/

r/ruby

58k subs

https://reddit.com/r/ruby/

r/haskell

46k subs

The Haskell programming language community. Daily news and info about all things Haskell related: practical stuff, theory, types, libraries, jobs, patches, releases, events and conferences and more...
https://reddit.com/r/haskell/

r/javascript

688k subs

All about the JavaScript programming language!
https://reddit.com/r/javascript/

r/golang

87k subs

Gophers of the world unite!
https://reddit.com/r/golang/

r/rust

73k subs

A place for all things related to the Rust programming language—an open-source systems language that emphasizes performance, reliability, and productivity.
https://reddit.com/r/rust/

r/git

34k subs

https://reddit.com/r/git/

r/Python

419k subs

news about the dynamic, interpreted, interactive, object-oriented, extensible programming language Python
https://reddit.com/r/Python/

r/linuxquestions

107k subs

https://reddit.com/r/linuxquestions/

r/compsci

618k subs

Computer Science Theory and Application. We share and discuss any content that computer scientists find interesting. People from all walks of life welcome, including hackers, hobbyists, professionals, and academics.
https://reddit.com/r/compsci/

r/cpp

101k subs

Discussions, articles and news about the C++ programming language or programming in C++.
https://reddit.com/r/cpp/

r/linuxmasterrace

146k subs

A subreddit for Linux enthusiasts.
https://reddit.com/r/linuxmasterrace/

r/C_Programming

59k subs

The subreddit for the C programming language
https://reddit.com/r/C_Programming/

r/linux4noobs

133k subs

Linux introductions, tips and tutorials. Questions are encouraged. Any distro, any platform! Explicitly noob-friendly.
https://reddit.com/r/linux4noobs/

r/bash

32k subs

A subreddit dedicated to bash scripting.
https://reddit.com/r/bash/

r/webdev

376k subs

A community dedicated to all things web development: both front-end and back-end. For more design-related questions, try /r/web_design.
https://reddit.com/r/webdev/

r/opensource

89k subs

A subreddit for everything [open source](http://en.wikipedia.org/wiki/Open_source) related.
https://reddit.com/r/opensource/

r/Ubuntu

124k subs

The Ubuntu community on Reddit
https://reddit.com/r/Ubuntu/

r/rails

38k subs

A subreddit for discussion and news about Ruby on Rails development
https://reddit.com/r/rails/

r/PHP

106k subs

Ask questions about frameworks, try your hand at php golf and strike gold or simply show off your latest work.
https://reddit.com/r/PHP/

r/netsec

327k subs

A community for technical news and discussion of information security and closely related topics.
https://reddit.com/r/netsec/

r/linux_gaming

110k subs

A subreddit for gaming on the GNU/Linux operating system.
https://reddit.com/r/linux_gaming/

r/coding

175k subs

https://reddit.com/r/coding/