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import java.lang.reflect.*;

class MyClass {

    private String privateField = "privateValue";

    public MyClass() {}

    public MyClass(String arg) {
        this.privateField = arg;

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tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

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#!/bin/bash
# Source https://stackoverflow.com/questions/36651091/how-to-install-packages-in-linux-centos-without-root-user-with-automatic-depen
pkgname=$1
if [ -z $pkgname ]; then
	echo "Usage: ./non-root-yum-install.sh pkgname-here"
	exit 1
fi


rand=$(openssl rand -base64 6)

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Notes

1. If your local network use public IP ranges instead of private ones, make sure to add respecive RETURN rules to iptables to prevent looping issue
2. Set clash as DHCP's only DNS server to allow domain-based filter (shunting) rules work
3. Use lsof -i udp:53 to check if clash's DNS module work fine, otherwise you may have to kill systemd-resolved and any other processes occupying the UDP 53 port
4. The given scripts will NOT hangle the traffic of gateway itself since it is not recommend to do so. If you want to redirect the egress traffic of the gateway, the following material may be useful

Reference

• https://www.wogong.net/blog/2020/11/clash-transparent-proxy
• https://github.com/Dreamacro/clash/pull/1049
• https://xtls.github.io/documents/level-2/transparent_proxy/transparent_proxy/

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#!/usr/bin/env python

"""
# Version
2021-08-31 

# Tested on 
Python 3.9

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http://download.huzheng.org/dict.org/stardict-dictd_www.dict.org_gcide-2.4.2.tar.bz2
http://download.huzheng.org/dict.org/stardict-dictd_www.dict.org_wn-2.4.2.tar.bz2
http://download.huzheng.org/dict.org/stardict-dictd-moby-thesaurus-2.4.2.tar.bz2
http://download.huzheng.org/dict.org/stardict-dictd-web1913-2.4.2.tar.bz2
http://download.huzheng.org/dict.org/stardict-dictd_www.dict.org_elements-2.4.2.tar.bz2
http://download.huzheng.org/dict.org/stardict-dictd-vera-2.4.2.tar.bz2
http://download.huzheng.org/dict.org/stardict-dictd-jargon-2.4.2.tar.bz2
http://download.huzheng.org/dict.org/stardict-dictd_www.dict.org_foldoc-2.4.2.tar.bz2
http://download.huzheng.org/dict.org/stardict-dictd-easton-2.4.2.tar.bz2
http://download.huzheng.org/dict.org/stardict-dictd_www.dict.org_hitchcock-2.4.2.tar.bz2

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brew install emacs-plus@28 --with-no-titlebar --with-modern-sexy-v1-icon

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将本地docker镜像放入minikube环境
docker save altinity/clickhouse-operator | (eval $(minikube docker-env) && docker load)

docker编译go module dockerfile 代理环境设置
ENV GOPROXY https://goproxy.cn

run clickhouse
docker run -d --name clickhouse-server --ulimit nofile=262144:262144 --volume=$HOME/cl-store:/var/lib/clickhouse yandex/clickhouse-server:20.3

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Parquet File format - Storage details
http://letsexplorehadoop.blogspot.com/2016/09/parquet-file-format-storage-details.html

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Parquet File format - Storage details
http://letsexplorehadoop.blogspot.com/2016/09/parquet-file-format-storage-details.html