tuansoibk

1. Introduction
2. Standards
3. Common combinations
4. Conversion
5. Verification/Inspection
6. Tips for recognising

Introduction

It happens that there are many standards for storing cryptography materials (key, certificate, ...) and it isn't always obvious to know which standard is used by just looking at file name extension or file content. There are bunch of questions on stackoverflow asking about how to convert from PEM to PKCS#8 or PKCS#12, while many tried to answer the questions, those answers may not help because the correct answer depends on the content inside the PEM file. That is, a PEM file can contain many different things, such as an X509 certificate, a PKCS#1 or PKCS#8 private key. The worst-case scenario is that someone just store a non-PEM content in "something.pem" file.

stevecondylios

How to Resize an Image in Github README.md (i.e. Github Flavored Markdown)

Percentage:

<img src="https://user-images.githubusercontent.com/16319829/81180309-2b51f000-8fee-11ea-8a78-ddfe8c3412a7.png" width=50% height=50%>

Pixels:

<img src="https://user-images.githubusercontent.com/16319829/81180309-2b51f000-8fee-11ea-8a78-ddfe8c3412a7.png" width="150" height="280">

jakelandis

version: '3'
services:
  elasticsearch:
    image: docker.elastic.co/elasticsearch/elasticsearch:8.0.0-SNAPSHOT
    container_name: elasticsearch
    environment:
      - network.host=0.0.0.0
      - discovery.type=single-node
      - cluster.name=docker-cluster
      - node.name=cluster1-node1

fworks

Steps:

1. Download the latest zsh package: https://packages.msys2.org/package/zsh?repo=msys&variant=x86_64

Example:

zsh-5.7.1-1-x86_64.pkg.tar.xz

caruccio

This example shows how to read options and positional arguments from a bash script (same principle can be applied for other shells).

# some global var we want to overwrite with options
force=false
help=false
log=info
ARGS=() ### this array holds any positional arguments, i.e., arguments not started with dash

while [ $# -gt 0 ]; do

ivanbrennan

#!/usr/bin/env bash

PADDING='Padding'

main() {
  local xterm_start=0 \
        xterm_width=8 \
        xterm_height=2

  local cube_start=$((xterm_start + xterm_width * xterm_height)) \

Bekbolatov

Clean tmux cheat-sheet

By resources

sessions

list-sessions        ls         -- List sessions managed by server
new-session          new        -- Create a new session

bertvv

# Generate PDFs from the Markdown source files
#
# In order to use this makefile, you need some tools:
# - GNU make
# - Pandoc
# - LuaLaTeX
# - DejaVu Sans fonts

# Directory containing source (Markdown) files
source := src

mgedmin

#!/usr/bin/python
"""Print a swatch using all 256 colors of 256-color-capable terminals."""


__author__ = "Marius Gedminas <marius@gedmin.as>"
__url__ = "https://gist.github.com/mgedmin/2762225"
__version__ = '2.0'


def hrun(start, width, padding=0):