2020-06-06

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常见虚拟机挂载共享目录问题

VMware Functions

试试这个

1	sudo /usr/bin/vmhgfs-fuse .host:/ /mnt/hgfs -o subtype=vmhgfs-fuse,allow_other

Virtualbox

装载 Additions

sudo mount /dev/cdrom /media/ -o loop

cd /media

sudo ./VBoxLinuxAdditions.run

reboot

toolsideclion

2020-06-06

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Clion中管理Makefile项目

Tut

安装 PIP

1	sudo apt install python-pip

install compiledb

1	pip install compiledb

compile db

1	compiledb -n make

linux

2020-05-15

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构建与调试 Linux 内核

本文以读者的 Linux 4.19 为构建目标

构建Linux内核

安装 GCC

1	sudo apt install gcc

构建配置

make menuconfig
# 选择 kernel hacking —> [*] compile the kernel with debug info 让其携带调试信息
make defconfig 生成配置文件
make 编译kernel

linuxusage

2020-05-04

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Xbindkey

安装

1	sudo apt install xbindkeys xautomation wish

配置

1	xbindkeys --defaults > $HOME/.xbindkeysrc

Media Btn

"dbus-send --print-reply --dest=org.mpris.MediaPlayer2.netease-cloud-music /org/mpris/MediaPlayer2 org.mpris.MediaPlayer2.Player.Next"
 b:8

"dbus-send --print-reply --dest=org.mpris.MediaPlayer2.netease-cloud-music /org/mpris/MediaPlayer2 org.mpris.MediaPlayer2.Player.PlayPause"
 b:2

"dbus-send --print-reply --dest=org.mpris.MediaPlayer2.netease-cloud-music /org/mpris/MediaPlayer2 org.mpris.MediaPlayer2.Player.Previous"
 b:9

tools

2019-11-22

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Rustup by USTC

RUSTUP

1	RUSTUP_DIST_SERVER=https://mirrors.ustc.edu.cn/rust-static rustup update

tools

2019-11-18

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容器网络Debug工具箱

Net Tools

查询服务内部TCP状态

1	PATTERN=redis sh -c "nsenter -t `docker ps \| grep $PATTERN \| awk '{print $1}' \| xargs docker inspect -f '{{.State.Pid}}'` -n netstat -ntuo"

Mac下容器内部访问宿主机网络

Use your internal IP address or connect to the special DNS name host.docker.internal which will resolve to the internal IP address used by the host.

tools

2019-11-06

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镜像站快速替换

alpine

1	sed -i 's/dl-cdn.alpinelinux.org/mirrors.ustc.edu.cn/g' /etc/apk/repositories

Debian

1 2	sudo sed -i 's/deb.debian.org/mirrors.ustc.edu.cn/g' /etc/apt/sources.list sudo sed -i 's\|security.debian.org/debian-security\|mirrors.ustc.edu.cn/debian-security\|g' /etc/apt/sources.list

Ubuntu

1	sudo sed -i 's/archive.ubuntu.com/mirrors.ustc.edu.cn/g' /etc/apt/sources.list

cncfkubernetes

2019-10-28

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kube 快速安装

More Faster 方案: KubeKey

下载 KubeKey

1
2
3

export KKZONE=cn
curl -sfL https://get-kk.kubesphere.io | VERSION=v1.0.1 sh -
chmod +x kk

创建配置

1	./kk create config --with-kubernetes v1.17.9

*安装单集群

1	./kk create cluster --with-kubernetes v1.17.9

javakotlin

2018-08-14

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写给 Java 开发者的 Kotlin 教程

写给 Java 开发者的 Kotlin 教程 (1) - 概述

写给 Java 开发者的 Kotlin 教程 (2) - 基础语法

写给 Java 开发者的 Kotlin 教程 (3) - 数据类型

写给 Java 开发者的 Kotlin 教程 (4) - 控制流表达式

写给 Java 开发者的 Kotlin 教程 (5) - Null对象与类型安全

java异步与并发编程

2018-05-25

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CyclicBarrier 详解

A synchronization aid that allows a set of threads to all wait for each other to reach a common barrier point. CyclicBarriers are useful in programs involving a fixed sized party of threads that must occasionally wait for each other. The barrier is called cyclic because it can be re-used after the waiting threads are released.

如Docs中所言，一个同步的工具能够让所有的线程等到一个集中点再继续执行。

Overview

public interface Future<V> {
    boolean cancel(boolean mayInterruptIfRunning);
    boolean isCancelled();
    boolean isDone();
    V get() throws InterruptedException, ExecutionException;
    V get(long timeout, TimeUnit unit) throws InterruptedException, ExecutionException, TimeoutException;