s13e salverde

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

Installing ag on CentOS

Prerequistes

libpcre
liblzma

Download, build and install

Compile the Vim 8.0 on RHEL 2.6.x

$ yum install gcc make ncurses ncurses-devel
$ yum install ruby ruby-devel lua lua-devel luajit \
  luajit-devel ctags git python python-devel \
  python3 python3-devel tcl-devel \
  perl perl-devel perl-ExtUtils-ParseXS \
  perl-ExtUtils-XSpp perl-ExtUtils-CBuilder \
  perl-ExtUtils-Embed
$ yum clean all

Preamble

On OS/X Sierra, after recently running a brew update I started receiving the error message Sorry, you can't use byebug without Readline when trying to run some rake tasks in my ruby project folder. I observed this in projects and gems that include byebug or pry in their Gemfile or gem.spec. I've found in my googling that many begin encountering this error message after running a brew update but there are other triggering conditions as well.

>> rake aws:show_config
WARN: Unresolved specs during Gem::Specification.reset:
      mime-types (>= 0)
WARN: Clearing out unresolved specs.
Please report a bug if this causes problems.
 Sorry, you can't use byebug without Readline. To solve this, you need to

GNUPG CHEATSHEET

Setting up: key generation

This generates a public/private keypair.

$ gpg --gen-key

$ gpg --list-secret-keys

Friendly URLs

By default, Rails applications build URLs based on the primary key -- the id column from the database. Imagine we have a Person model and associated controller. We have a person record for Bob Martin that has id number 6. The URL for his show page would be:

/people/6

But, for aesthetic or SEO purposes, we want Bob's name in the URL. The last segment, the 6 here, is called the "slug". Let's look at a few ways to implement better slugs.

	#!/bin/bash

	# Author: Erik Kristensen
	# Email: erik@erikkristensen.com
	# License: MIT
	# Nagios Usage: check_nrpe!check_docker_container!_container_id_
	# Usage: ./check_docker_container.sh _container_id_
	#
	# Depending on your docker configuration, root might be required. If your nrpe user has rights
	# to talk to the docker daemon, then root is not required. This is why root privileges are not

	crack Sublime Text (2 and 3)

	1. Open Sublime in a HEX editor (the executable file)
	2. Find 43 33 33 42 30 32
	3. Replace in the string 33 42 with 32 42
	4. Save
	5. Enter the license below:

	—–BEGIN LICENSE—–
	Patrick Carey

	# Deploy
	require 'mina/bundler'
	require 'mina/rails'
	require 'mina/git'
	require 'mina/rbenv'

	set :rails_env, 'production'
	set :deploy_to, 'deploy_location_without_current'
	set :app_path, 'app_location'
	set :user, 'alif'