yalab

#!/bin/bash
PREV=$1
POST=$2
TRUE="1"
FALSE="0"

isChanged (){
    FILE_CHANGED="$(git log $PREV..$POST --pretty='format:' --name-only | grep $1)"
    if [ -n "$FILE_CHANGED" ];then
        echo $TRUE

yalab

# USAGE find_copy_and_paste_method.rb MOD_NAME
Rails.application.eager_load!
base_class = ARGV[0].constantize
def all_subclasses(klasses)
  if klasses == []
    klasses
  else
    klasses.map{|k| all_subclasses(k.subclasses) << klasses }.flatten
  end
end

yalab

別ウインドウの pts を調べる

vagrant@ubuntu-xenial:~$ w
 07:50:17 up 27 min,  3 users,  load average: 1.17, 1.12, 0.95
USER     TTY      FROM             LOGIN@   IDLE   JCPU   PCPU WHAT
vagrant  pts/0    10.0.2.2         07:23   26:25   0.30s  0.00s /bin/sh -c set 
vagrant  pts/1    10.0.2.2         07:24    1.00s  0.06s  0.00s w
vagrant  pts/2    10.0.2.2         07:25   57.00s  0.04s  0.04s -bash

yalab

module Sprockets::SassProcessor::Functions
  def cdn_path(path, options={})
    prefix = if (asset_host = Rails.application.config.action_controller.asset_host)
               asset_host.scan(%r(/[^/]+\Z)).first
             else
               ""
             end
    prefixed = prefix + asset_path(path, options).to_s
    Sass::Script::String.new(prefixed)
  end

yalab

wpa_passphrase SSID
# => write your WIFI PASSWORD then show encoded password
iwconfig wlan0 essid SSID enc s:ENCODED_PASSWORD

yalab

(defun rb-strkeytosym (start end)
  "ruby Hash key string to symbol"
  (interactive "r")
  (replace-regexp "\"\\([a-z_]+\\)\"=>" "\\1: " nil start end))

(defun rb-htmlopttoerb (start end)
  "html attreibute to erb option"
  (interactive "r")
  (replace-regexp " \\([a-z_]+\\)=" ", \\1: " nil start end))

yalab

プロセス

プロセスってどうやって起動するのか調べる

linux kernel process invoke で検索すると http://www.tldp.org/LDP/tlk/kernel/processes.html

Linux の process とは task_struct 構造体の事で、task vector に 512 個まで格納される

process と task の違い？

yalab

スタッフ

1, yuukyun
2,yamazoeakiyo
3,
4,morisaki
5, higaki
6, aki
7, kyara
8,

yalab

iptables の設定

# apt-get install iptables-persistent
# cd /etc
# git add -A
# git commit -m 'apt-get install iptables-persistent'
# vi /root/iptables.sh

yalab

FROM alpine
MAINTAINER yalab <rudeboyjet@gmail.com>

RUN apk --update --no-cache add alpine-sdk ncurses-dev bc linux-headers perl
ENV ARCH="x86_64"

RUN git clone --depth 1 git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git /linux

WORKDIR /linux