Tomoyuki KOYAMA tomoyk

参考
- http://hr-sano.net/blog/2014/10/26/1729/

JSON

https://ja.wikipedia.org/wiki/JavaScript_Object_Notation

メリット

Python標準に含まれている
仕様が厳格に決まっている

2015年に日本で英語配列キーボードを備えたノートパソコンを買いたい

背景

ノートパソコンあると便利
- 外でプログラム書いたり、勉強会のメモとったり、ネットみたりに使う
- プログラム書くにはiOSとかAndroidはきついので、フル機能のOSが動いてほしい
買うとしたら手頃な価格で買いたい

電源を入れたときにtty1を自動ログインする設定あれこれ集.md

CentOS

CentOS7 (systemd)

次のコマンドを実行

$ sudo systemctl edit getty@tty1

MQTT とはなんだったのか

更新:	2017-05-09
作者:	@voluntas
バージョン:	3.14
URL:	http://voluntas.github.io/

MQTT をググって調べた人向け

File Magic Numbers

Magic numbers are the first bits of a file which uniquely identify the type of file. This makes programming easier because complicated file structures need not be searched in order to identify the file type.

For example, a jpeg file starts with ffd8 ffe0 0010 4a46 4946 0001 0101 0047 ......JFIF.....G ffd8 shows that it's a JPEG file, and ffe0 identify a JFIF type structure. There is an ascii encoding of "JFIF" which comes after a length code, but that is not necessary in order to identify the file. The first 4 bytes do that uniquely.

This gives an ongoing list of file-type magic numbers.

Image Files

https://gist.github.com/voluntas/a1d39c2b2a4392956ff69732dc493e39

How to add environment variables to nginx.conf

This is the hack approach to adding environment variables to the nginx configuration files. As with most Google results for this search, the reason is Docker.

The setup

I intended to deploy two Docker containers.

	# Install Time Machine service on CentOS 7
	# http://netatalk.sourceforge.net/wiki/index.php/Netatalk_3.1.7_SRPM_for_Fedora_and_CentOS
	# http://confoundedtech.blogspot.com/2011/07/draft-draft-ubuntu-as-apple-time.html
	yum install -y rpm-build gcc make wget

	# install netatalk
	yum install -y avahi-devel cracklib-devel dbus-devel dbus-glib-devel libacl-devel libattr-devel libdb-devel libevent-devel libgcrypt-devel krb5-devel mysql-devel openldap-devel openssl-devel pam-devel quota-devel systemtap-sdt-devel tcp_wrappers-devel libtdb-devel tracker-devel

	yum install -y bison docbook-style-xsl flex dconf

	void setup() {
	Serial.begin(9600) ;
	pinMode(13, OUTPUT);
	pinMode(2, INPUT_PULLUP);
	}

	unsigned long prev=0;
	void loop() {
	int x;
	unsigned long current = millis();

	#!/bin/bash

	# Slack notification script for Munin
	# Mark Matienzo (@anarchivist)
	#
	# To use:
	# 1) Create a new incoming webhook for Slack
	# 2) Edit the configuration variables that start with "SLACK_" below
	# 3) Add the following to your munin configuration:
	#