dy dyipon

Processing JSON using jq

jq is useful to slice, filter, map and transform structured json data.

brew install jq

Create a new repository, or reuse an existing one.

Generate a new SSH key:

ssh-keygen -t rsa -C "[email protected]"

Copy the contents of the file ~/.ssh/id_rsa.pub to your SSH keys in your GitHub account settings (https://github.com/settings/keys).

Test SSH key:

1.json contains data retrieved from the Instagram API. data is an array of media matching the query posted to Instagram's REST API, in a JSON array.
Each media element contains metadata for a photo/video posted to Instagram
.data[] loops over each media object in the JSON file, letting us process each element
| works like a regular *nix pipe, taking the output of the previous operator and passing it on to the next one.
select() filters through objects depending on the rule passed to it.
.tags[] returns an array of tags for each media. contains() returns true if the current object passed to it contains the string passed as a parameter. .tags[] | contains("100happydays") iterates over all the tags associated with the media object and returns true if the current tag matches the string 100happydays.
.select( .tags[] | contains("100happydays") ) filters all media objects that contain the tag 100happydays
.images.standard_resolution.url now

	#!/usr/bin/expect

	set timeout 20
	spawn telnet $env(POP3_SERVER) $env(POP3_PORT)
	expect +OK; send "USER $env(POP3_USER)\r"
	expect +OK; send "PASS $env(POP3_PASS)\r"
	expect +OK; send "STAT\r"
	set x 1
	while { $x <= 10000 } {
	expect +OK {

	#!/usr/bin/python

	import os
	import sys
	import boto3

	# get an access token, local (from) directory, and S3 (to) directory
	# from the command-line
	local_directory, bucket, destination = sys.argv[1:4]

	#!/bin/bash

	bucket=$1

	set -e

	echo "Removing all versions from $bucket"

	versions=`aws s3api list-object-versions --bucket $bucket \|jq '.Versions'`
	markers=`aws s3api list-object-versions --bucket $bucket \|jq '.DeleteMarkers'`

	Add-Type -AssemblyName System.Windows.Forms

	while ($true)
	{
	$Pos = [System.Windows.Forms.Cursor]::Position
	$x = ($pos.X % 500) + 1
	$y = ($pos.Y % 500) + 1
	[System.Windows.Forms.Cursor]::Position = New-Object System.Drawing.Point($x, $y)
	Start-Sleep -Seconds 10
	}

	# Ask for the user password
	# Script only works if sudo caches the password for a few minutes
	sudo true

	# Install kernel extra's to enable docker aufs support
	# sudo apt-get -y install linux-image-extra-$(uname -r)

	# Add Docker PPA and install latest version
	# sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 36A1D7869245C8950F966E92D8576A8BA88D21E9
	# sudo sh -c "echo deb https://get.docker.io/ubuntu docker main > /etc/apt/sources.list.d/docker.list"

	- name: ensure github.com is a known host
	lineinfile:
	dest: /root/.ssh/known_hosts
	create: yes
	state: present
	line: "{{ lookup('pipe', 'ssh-keyscan -t rsa github.com') }}"
	regexp: "^github\\.com"