hofmannsven

Command Line Crash Course

Related tutorials

• http://cli.learncodethehardway.org/book/
• https://www.codecademy.com/courses/learn-the-command-line

Cheatsheets

• Linux auf einem Blatt
• Fasd

dsyer

Dynamic Configuration Properties in Spring Boot and Spring Cloud

TL;DR

• Use @ConfigurationProperties and always get state from the bean.
• The Environment can change at runtime and Spring Cloud does this for you using RefreshEvent.
• Changes are propagated to beans in Spring Cloud in 2 ways (@ConfigurationProperties and @RefreshScope).
• If you care about the state of @ConfigurationProperties being consistent on concurrent access, put it or the consumer @Bean in @RefreshScope.

Typical Scenarios

steven2358

FFmpeg cheat sheet

A list of useful commands for the FFmpeg command line tool.

Download FFmpeg: https://www.ffmpeg.org/download.html

Full documentation: https://www.ffmpeg.org/ffmpeg.html

Basic conversion

bcnzer

const echoPostRequest = {
  url: 'https://<my url>.auth0.com/oauth/token',
  method: 'POST',
  header: 'Content-Type:application/json',
  body: {
    mode: 'application/json',
    raw: JSON.stringify(
        {
        	client_id:'<your client ID>',
        	client_secret:'<your client secret>',

rcherara

Install Minikube with virtual-box VM driver

$ brew update && brew install kubectl && brew cask install docker minikube virtualbox
$ brew cask reinstall minikube
$ minikube delete
$ rm -fr ~/.minikube/

BigOokie

Use the following pattern for `pgrep` to identify a running process that contains specific commandline parameters

Note the following pgrep options are needed:
-a, --list-full           list PID and full command line
-f, --full                use full process name to match
-c, --count               count of matching processes


To find a specific process with a specific commandline parameter use the following:
pgrep -a -f "{processname}.*{commandline param}"

valyakuttan

Setup tor proxy on Arch Linux

Copied from this article.

Installation

1. Install tor

        $ sudo pacman -S tor
        $ ## nyx provides a terminal status monitor for bandwidth usage, connection details and more.

$ sudo pacman -S nyx

usametov

Github.com ui .currently does not natively supoport search for multiple topic tags as of now. However their api allows you to query multiple tags. Below is a simple example to query github.com with ecs and go topic tags.

curl -H "Accept: application/vnd.github.mercy-preview+json" \
https://api.github.com/search/repositories?q=topic:ecs+topic:go

Response from the github can be rather verbose so lets filter only relavant info such repo url and description.

curl -H "Accept: application/vnd.github.mercy-preview+json" \
https://api.github.com/search/repositories\?q\=topic:ecs+topic:go | jq '.items[] | {url:.url, description:.description}'

martinwoodward

```mermaid
sequenceDiagram
    participant dotcom
    participant iframe
    participant viewscreen
    dotcom->>iframe: loads html w/ iframe url
    iframe->>viewscreen: request template
    viewscreen->>iframe: html & javascript
 iframe->>dotcom: iframe ready

maciejwalkowiak

package com.example.custombodyannotation;

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
import java.util.List;

import javax.servlet.http.HttpServletRequest;