earthgecko

#!/bin/bash
# bash generate random alphanumeric string
#

# bash generate random 32 character alphanumeric string (upper and lowercase) and 
NEW_UUID=$(cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 32 | head -n 1)

# bash generate random 32 character alphanumeric string (lowercase only)
cat /dev/urandom | tr -dc 'a-z0-9' | fold -w 32 | head -n 1

JamieMason

Unfollow everyone on twitter.com

1. Go to https://twitter.com/YOUR_USER_NAME/following
2. Open the Developer Console. (COMMAND+ALT+I on Mac)
3. Paste this into the Developer Console and run it

// Unfollow everyone on twitter.com, by Jamie Mason (https://twitter.com/fold_left)
// https://gist.github.com/JamieMason/7580315
//

j8

You can create a new empty branch like this:

$ git checkout --orphan NEWBRANCH

--orphan creates a new branch, but it starts without any commit. After running the above command you are on a new branch "NEWBRANCH", and the first commit you create from this state will start a new history without any ancestry.

The --orphan command keeps the index and the working tree files intact in order to make it convenient for creating a new history whose trees resemble the ones from the original branch.

Since you want to create a new empty branch that has nothing to do with the original branch, you can delete all files in the new working directory:

prograhammer

Git Cheat Sheet

Single Git Commands

Initialize a git repo in the current directory

# git init

Add a remote called "origin"

git remote add origin https://github.com/your-username-here/your-repo-here.git

vasanthk

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

1. Clarify and agree on the scope of the system

• User cases (description of sequences of events that, taken together, lead to a system doing something useful)
  • Who is going to use it?
  • How are they going to use it?

filipechagas

# Start on recovery mode

# Go on terminal

$ mount -t msdos /dev/disk0s1 /Volumes/ESP.

$ rm -rf /Volumes/ESP/efi/refind

# from http://www.rodsbooks.com/refind/installing.html#uninstalling

jorgenschaefer

import logging


class NoExceptionsFormatter(logging.Formatter):
    def format(self, record):
        record.message = record.getMessage()
        if self.usesTime():
            record.asctime = self.formatTime(record, self.datefmt)
        return self._fmt % record.__dict__

ankurk91

Github : Signing commits using GPG (Ubuntu/Mac) 🔐

• Do you have an Github account ? If not create one.
• Install required tools
• Latest Git Client
• gpg tools

# Ubuntu
sudo apt-get install gpa seahorse
# MacOS with https://brew.sh/

wader

version: '2'
services:
  traefik:
    restart: unless-stopped
    image: traefik
    ports:
      - "80:80"
      - "443:443"
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock:ro

kevinadi

#!/bin/sh

# Generate self signed root CA cert
openssl req -nodes -x509 -newkey rsa:2048 -keyout ca.key -out ca.crt -subj "/C=AU/ST=NSW/L=Sydney/O=MongoDB/OU=root/CN=`hostname -f`/emailAddress=kevinadi@mongodb.com"


# Generate server cert to be signed
openssl req -nodes -newkey rsa:2048 -keyout server.key -out server.csr -subj "/C=AU/ST=NSW/L=Sydney/O=MongoDB/OU=server/CN=`hostname -f`/emailAddress=kevinadi@mongodb.com"

# Sign the server cert