Shahzaib Ali Khan shahzaibalikhan

Take slice of logs by time

zgrep 'T18:' -r $PWD >> /tmp/logs

Print logs (time, request_url, elb status, target_status)

awk '{print $2 "\t" $14 "\t" $9 "\t" $10}' /tmp/logs

Filter logs by 5XX status of ELB

5 entertaining things you can find with the GitHub Search API

Let's have some command-line fun with curl, [jq][1], and the [new GitHub Search API][2].

Today we're looking for:

The hottest repositories created in the last week.
The oldest user accounts with zero followers. (So sad.)
Issue trends by language.
Clojure projects defying convention.

Running redis using upstart on Ubuntu

I've been trying to understand how to setup systems from the ground up on Ubuntu. I just installed redis onto the box and here's how I did it and some things to look out for.

To install:

The Perfect Node / Nginx Server

Ubuntu 14.10 64 bit
Node 0.10.x from source
Nginx from source with SPDY & Pagespeed support

Assumes you're doing everything under /home/ubuntu

	[Unit]
	Description=Redis Datastore Server
	After=network.target

	[Service]
	Type=forking
	PIDFile=/var/run/redis/redis.pid
	ExecStartPre=/bin/mkdir -p /var/run/redis
	ExecStartPre=/bin/chown redis:redis /var/run/redis

	start on runlevel [2345]
	stop on runlevel [!2345]

	respawn
	respawn limit 10 5

	setuid ubuntu
	chdir /opt/myAplicacion

	env PORT=3000

	description "Server Name
	author "author"

	start on (local-filesystems and net-device-up IFACE=eth0)
	stop on shutdown

	respawn

	exec sudo -u ubuntu sh -c "NODE_ENV=production node /var/sites/stuff/app.js >> /var/log/stuff.log 2>&1"

	[Unit]
	Description=Our cool Node.js App
	After=network.target

	[Service]
	Type=forking
	Restart=always
	User=fooapp
	ExecStart=/var/appdata/fooapp/node_modules/pm2/bin/pm2 start /var/appdata/fooapp/app.js
	ExecStop=/var/appdata/fooapp/node_modules/pm2/bin/pm2 stop /var/appdata/fooapp/app.js

	var container = document.querySelector('body');

	var observer = new MutationObserver(function(mutations){
	// Do something here
	mutations.forEach(function(mutation) {
	console.log('mutation.type = ' + mutation.type);
	for (var i = 0; i < mutation.addedNodes.length; i++) {
	console.log(' "' + mutation.addedNodes[i].textContent + '" added');
	}

	if [ -f /etc/bash_completion ]; then
	. /etc/bash_completion
	fi

	xhost +local:root > /dev/null 2>&1

	complete -cf sudo

	shopt -s cdspell
	shopt -s checkwinsize