luisguzman02

#!/usr/bin/env bash

# Usage: git-branch-status
# Show how many commits each branch is ahead or behind its upstream.

branch=`git rev-parse --abbrev-ref HEAD`

git for-each-ref --format='%(refname:short) %(upstream:short)' refs/heads | \
while read local upstream; do

luisguzman02

Common Options

-#, --progress-bar Make curl display a simple progress bar instead of the more informational standard meter.

-b, --cookie <name=data> Supply cookie with request. If no =, then specifies the cookie file to use (see -c).

-c, --cookie-jar <file name> File to save response cookies to.

luisguzman02

SELECT schemaname,relname,n_live_tup 
  FROM pg_stat_user_tables 
  ORDER BY n_live_tup DESC;

luisguzman02

files:
  "/opt/elasticbeanstalk/hooks/appdeploy/post/01_do_stuff.sh" :
    mode: "000755"
    owner: ec2-user
    group: ec2-user
    content: |
      #! /usr/bin/env bash
      # Using similar syntax as the appdeploy pre hooks that is managed by AWS
      set -xe

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# Sidekiq interaction and startup script
commands:
  create_post_dir:
    command: "mkdir -p /opt/elasticbeanstalk/hooks/appdeploy/post"
    ignoreErrors: true
files:
  "/opt/elasticbeanstalk/hooks/appdeploy/post/50_restart_sidekiq.sh":
    mode: "000755"
    owner: root
    group: root

luisguzman02

files:
  "/opt/elasticbeanstalk/hooks/appdeploy/post/50_restart_sidekiq":
    mode: "000755"
    content: |
      #!/bin/bash
      initctl restart sidekiq || initctl start sidekiq

      ln -sf /var/app/current/log/sidekiq.log /var/app/containerfiles/logs/sidekiq.log

  "/opt/elasticbeanstalk/hooks/appdeploy/pre/03_mute_sidekiq":

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to_delete = []

branches = `git branch -r | grep origin`
branches.each_line do |branch|
  branch.strip!
  next if branch['master']
  puts branch
  puts cmd = "git diff --stat origin/master...#{branch}"
  if `#{cmd}`.empty?
    to_delete << branch

luisguzman02

tmux cheat sheet

(C-x means ctrl+x, M-x means alt+x)

Prefix key

The default prefix is C-b. If you (or your muscle memory) prefer C-a, you need to add this to ~/.tmux.conf:

remap prefix to Control + a

luisguzman02

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

luisguzman02

class PdfMerger
  
  def merge(pdf_paths, destination)
    
    first_pdf_path = pdf_paths.delete_at(0)
    
    Prawn::Document.generate(destination, :template => first_pdf_path) do |pdf|
      
      pdf_paths.each do |pdf_path|
        pdf.go_to_page(pdf.page_count)