Tadanori Teruya tell

ログファイルまとめ

ログイン情報に関するログ

/var/log/wtmp
/var/log/btmp
/var/log/faillog
/var/log/lastlog
/var/log/tallylog

シーケンス図とかフローチャートをしごとで描画することになった場合、テキストから生成できたら楽なので、それ系のツールまとめ

GraphViz

http://www.graphviz.org/

C製
Doxygen, Moinmoinなどと連携可能
ブロック図、クラス図、ネットワーク図など

WebRTC コトハジメ

更新:	2024-05-20
作者:	@voluntas
バージョン:	2024.1
URL:	https://voluntas.github.io/

Mac

echo "export HOMEBREW_CASK_OPTS="--appdir=/Applications"" >> .bash_profile
echo "export HOMEBREW_CASK_OPTS="--appdir=/Applications"" >> .zprofile
xcode-select --install  
ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"  
brew tap phinze/cask  
brew install brew-cask  
brew cask install atom  
apm install atom-lint

Operational PGP

This is a guide on how to email securely.

There are many guides on how to install and use PGP to encrypt email. This is not one of them. This is a guide on secure communication using email with PGP encryption. If you are not familiar with PGP, please read another guide first. If you are comfortable using PGP to encrypt and decrypt emails, this guide will raise your security to the next level.

	Require Import Relations.

	Section Lecture.
	Variable A : Set.
	Variable R : relation A.

	Hypothesis Hrefl : reflexive _ R.
	Hypothesis H : forall x y z, R x y -> R x z -> R y z.

	Hint Unfold reflexive symmetric transitive.

	%% bxamstext.sty

	%% package declaration
	\NeedsTeXFormat{LaTeX2e}
	\ProvidesPackage{bxamstext}[2015/12/19 v0.2]

	%% preparation
	\def\bxtt@pkgname{bxamstext}

	%% load packages

	%% This is file `dvipdfmx.def' for DVIPDFMx by J.-H. Cho and S. Hirata
	%% based upon `dvipdf.def' in the LaTeX `Graphics Bundle'.
	%%
	%% Copyright 2005-2015 Jin-Hwan Cho, Shunsaku Hirata
	%% (with contributions from many others)
	%%
	%% This file is not part of the Standard LaTeX `Graphics Bundle'.
	%% It may be distributed under the terms of the LaTeX Project Public
	%% License, as described in lppl.txt in the base LaTeX distribution.
	%% Either version 1.0 or, at your option, any later version.

	#include <cstdio>
	#include <cmath>
	#include <emmintrin.h>

	#define _mm_set1_pd(x) _mm_set_pd((x), (x))

	// Probably somewhat faster.
	inline __m128d fastexp(__m128d v)
	{
	const __m128d inv_log2 = _mm_set1_pd(1.4426950408889634073599);


	def color(text, **user_styles):

	styles = {
	# styles
	'reset': '\033[0m',
	'bold': '\033[01m',
	'disabled': '\033[02m',
	'underline': '\033[04m',
	'reverse': '\033[07m',