Skip to content

Instantly share code, notes, and snippets.

View hqman's full-sized avatar
🏊‍♂️
Focusing

Kai Wang hqman

🏊‍♂️
Focusing
View GitHub Profile
@gilyes
gilyes / Backup, restore postgres in docker container
Last active June 11, 2024 21:21
Backup/restore postgres in docker container
Backup:
docker exec -t -u postgres your-db-container pg_dumpall -c > dump_`date +%d-%m-%Y"_"%H_%M_%S`.sql
Restore:
cat your_dump.sql | docker exec -i your-db-container psql -Upostgres
@tejastank
tejastank / fix.wkhtmltopdf.odoo.snippetbucket.erp.open.source.seo.sh
Last active August 14, 2022 18:03
Wkhtmltopdf failed (error code: -6). Message: The switch --header-spacing, is not support using unpatched qt, and will be ignored.The switch --header-html, is not support using unpatched qt, and will be ignored.The switch --footer-html, is not support using unpatched qt, and will be ignored.QXcbConnection: Could not connect to display. # https:/…
# https://www.snippetbucket.com/
# ODOO ERP Django PHP Android AngularJS implementation and customization.
# Most Simple and Quick Way:
sudo su
cd /opt
wget https://github.com/wkhtmltopdf/wkhtmltopdf/releases/download/0.12.4/wkhtmltox-0.12.4_linux-generic-amd64.tar.xz
tar xvf wkhtmltox-0.12.4_linux-generic-amd64.tar.xz
mv wkhtmltox/bin/wkhtmlto* /usr/bin/
@ryerh
ryerh / tmux-cheatsheet.markdown
Last active June 10, 2024 17:21 — forked from MohamedAlaa/tmux-cheatsheet.markdown
Tmux 快捷键 & 速查表 & 简明教程

注意:本文内容适用于 Tmux 2.3 及以上的版本,但是绝大部分的特性低版本也都适用,鼠标支持、VI 模式、插件管理在低版本可能会与本文不兼容。

Tmux 快捷键 & 速查表 & 简明教程

启动新会话:

tmux [new -s 会话名 -n 窗口名]

恢复会话:

@zzc880808
zzc880808 / 前端报价规范
Created January 12, 2016 09:58
网易报价
#前端开发报价规范
##总报价的计算
项目报价按项目工期计算
```
总报价 = 单位报价(元/天) x 工期(天)
```
@spalladino
spalladino / mysql-docker.sh
Created December 22, 2015 13:47
Backup and restore a mysql database from a running Docker mysql container
# Backup
docker exec CONTAINER /usr/bin/mysqldump -u root --password=root DATABASE > backup.sql
# Restore
cat backup.sql | docker exec -i CONTAINER /usr/bin/mysql -u root --password=root DATABASE
@revolunet
revolunet / python-es6-comparison.md
Last active April 22, 2024 19:22
# Python VS JavaScript ES6 syntax comparison

Python VS ES6 syntax comparison

Python syntax here : 2.7 - online REPL

Javascript ES6 via Babel transpilation - online REPL

Imports

import math
@addyosmani
addyosmani / README.md
Last active April 2, 2024 20:18 — forked from 140bytes/LICENSE.txt
108 byte CSS Layout Debugger

CSS Layout Debugger

A tweet-sized debugger for visualizing your CSS layouts. Outlines every DOM element on your page a random (valid) CSS hex color.

One-line version to paste in your DevTools

Use $$ if your browser aliases it:

~ 108 byte version

//
// NaturalMotion.swift
//
// Created by Maciej Swic on 2014-06-06.
// Released under the MIT license.
//
import UIKit
extension UIView {
@jcouyang
jcouyang / 2012-12-31-node-dot-js-vs-tornado-vs-php.markdown
Last active January 15, 2021 02:38
为什么事件驱动服务器这么火

本文基本上这为两篇文章的翻译和整合 -- Scalable networking And Why are event-driven server so great

OPPC模型瓶颈

传统服务器模型如Apache为每一个请求生成一个子进程。当用户连接到服务器的一个子进程就产生,并处理连接。每个连接获得一个单独的线程和子进程。当用户请求数据返回时,子进程开始等待数据库操作返回。如果此时另一个用户也请求返回数据,这时就产生了阻塞。

这种模式在非常小的工作负荷是表现良好,当请求的数量变得太大是服务器会压力过于巨大。 当Apache达到进程的最大数量,所有进程都变得缓慢。每个请求都有自己的线程,如果服务代码使用PHP编写时,每个进程所需要的内存量是相当大的[1]。

fork()操作延时

@ahmozkya
ahmozkya / README.md
Last active July 7, 2023 09:27
Homebrew with DNSMasq + DNSCrypt-proxy (OpenDNS)