qichunren

# 统计代码行数，不包括空行
find /src -name "*.cpp" |xargs cat|grep -v ^$|wc -l

# 查看进程内存使用情况
cat /proc/409/status | grep VmRSS | awk '{print $2}'

# 获取网卡设备对应的IP地址
ifconfig eth0 | grep "inet " | awk '{print $2}'

# 获取网卡设备对应的MAC地址

qichunren

1. vscode from https://code.visualstudio.com/
2. ruby 2.6.5 from https://www.ruby-lang.org/zh_cn/, add bin path to /etc/environment
3. nodejs from https://nodejs.org/zh-cn/, sudo tar xf xx.tar.gz -C /usr/local, and add bin path to /etc/environment
4. sudo visudo, Add ruby and node path to secret path.
5. sudo npm install -g yarn
6. curl, git, gitg
    $ git config --global user.name "qichunren"
    $ git config --global user.email whyruby@gmail.com
7. openssh-server
8. Set up ssh key with right permisson flag.

qichunren

function pajx_request(url) {
    Rails.ajax({
        url: url,
        type: "get",
        success: function (data) {
            console.log(data);
            $("#pajx_container").html(data.documentElement.innerHTML);
            window.history.pushState(null, null, url);
        },
        beforeSend: (xhr, options) => {

qichunren

#!/bin/bash

echo "Start rsync daemon ..."

for (( ; ; ))
do
   echo "rsync checking ... [ hit CTRL+C to stop]"
   rsync -az --exclude 'log/' --exclude 'tmp/' --exclude 'public/' --exclude 'node_modules/' --exclude '.git/' --exclude 'Gemfile.lock' --exclude 'yarn.lock' backend_www xxxxxx@192.168.43.175:/home/xxxxxxx/code/ --delete
   sleep 3
done

qichunren

ssh-keygen -t rsa -b 4096 -N '' -C "rthijssen@gmail.com" -f ~/.ssh/id_rsa
ssh-keygen -t rsa -b 4096 -N '' -C "rthijssen@gmail.com" -f ~/.ssh/github_rsa
ssh-keygen -t rsa -b 4096 -N '' -C "rthijssen@gmail.com" -f ~/.ssh/mozilla_rsa

qichunren

#!/usr/bin/env ruby
# -*- coding: utf-8 -*-
#
# This sample code is a port of
# gstreamer/tests/examples/launch/mp3parselaunch.c. It is licensed
# under the terms of the GNU Library General Public License, version
# 2 or (at your option) later.
#
# Copyright (C) 2013  Ruby-GNOME2 Project Team
#

qichunren

q = Queue.new
producer = Thread.new {
  c = 0
  while true do
    q << c
    c += 1
  end
}
printer1 = Thread.new {
  while true

qichunren

require 'open-uri'
require 'json'
require 'time'


orders = {}

ROUTE_TYPE_CROSS = 7
ROUTE_TYPE_INNER = 3

qichunren

#############################################################
#
# ruby
#
#############################################################

RUBY_VERSION = 1.9.2-p0
RUBY_SITE = ftp://ftp.ruby-lang.org/pub/ruby/1.9
RUBY_AUTORECONF = YES
HOST_RUBY_AUTORECONF = YES

qichunren

sudo ifconfig eth0 192.168.11.187 netmask 255.255.0.0

sudo route add default gw 192.168.8.5

add nameserver 192.168.8.5 to file /etc/resolv.conf

cd /media/xubuntu/WD2TB
sudo dd if=/dev/sda of=T420HDD-20150506.img