TIL: Today I Learned

Things I've learned over the years, just in case I (or you!) need it again

Recently Added

• Nov 22, 2021 VSCode only showing one open tab
• Nov 11, 2021 Convert a PDF to a stacked jpg
• Oct 04, 2021 Filter for dates before today with jq
• Sep 30, 2021 Use a custom .zshrc with iTerm2
• Sep 02, 2021 Find AWS EC2 AMI owner ID

ansible

• May, 2014 Cowsay and Ansible
• Apr, 2014 Setting up Ansible for hacking
• Apr, 2014 Ansible: module is missing interpreter line
• Apr, 2014 Installing Ansible from source on Ubuntu
• Mar, 2014 Ansible: Installing Google Chrome on Ubuntu
• Mar, 2014 ansible: ImportError: No module named ansible.playbook

archlinux

• Jan, 2017 TP-Link TL-WN823N on Arch Linux
• Oct, 2016 Connecting to a hidden network on Arch Linux
• Oct, 2016 Yubikey on Arch
• Aug, 2016 YouCompleteMe on Arch Linux
• Dec, 2015 Arch Linux: netctl and vpnc (Cisco VPN)

audio

• Dec, 2014 Convert .wav to .mp3 and set id3 tags

aws

• Sep, 2021 Find AWS EC2 AMI owner ID
• May, 2021 AWS Federated login
• Oct, 2015 Fix: s3fs Permission issue on remote folders

centos

• Nov, 2016 Error while loading shared libraries: libbz2.so.1.0: cannot open shared object file on CentOS 7
• Aug, 2015 Build CentOS 5 generic RPM on CentOS 6
• Jun, 2015 Use SCL packages without bash
• Jun, 2015 Installing Ruby 1.9.3 on CentOS 6
• Mar, 2013 Installing ZSH 5.0 on CentOS 5.7
• Mar, 2013 Installing Vim 7.3 on Centos 5.7

css

• Dec, 2020 CSS Target Selector

eleventy

• Apr, 2021 Concatenate strings in Nunjucks
• Apr, 2021 Use an Eleventy filter as an if statement
• Apr, 2021 Add a markdown filter to Eleventy

ffmpeg

• Aug, 2016 ffmpeg: Create a video from time lapse photos

gatsby

• Dec, 2020 Gatsby Category Count
• May, 2020 Adding a script tag using Gatsby JS

git

• May, 2021 Understanding .gitignore with git check-ignore
• May, 2021 Show untracked files with git status
• May, 2021 A better git blame with --ignore-rev
• Dec, 2020 Retag a Git Tag
• Nov, 2020 Restore a file without adding to the index using Git
• Nov, 2020 Show all files deleted since Git commit

github

• May, 2021 Pin GitHub Issues
• May, 2021 Publishing a Ruby Gem to the GitHub Package Registry

golang

• Nov, 2014 golang: Get last character of a string
• Sep, 2014 golang: How to go get private repos
• Sep, 2014 Golang: Using Memcached
• Aug, 2014 golang: Encode/Decode arbitrary JSON
• Jul, 2014 golang: invalid operation: someVar == "" (mismatched types *string and string)

gpg

• Mar, 2016 gpg: connecting dirmngr failed: IPC connect call failed
• Jan, 2016 gpg: can't connect to the agent: IPC connect call failed
• Nov, 2015 Using GPG to securely send a message
• Sep, 2011 Not enough random bytes available. [GPG Signing]

gumroad

• May, 2020 Select a product version with Gumroad embeds

javascript

• May, 2021 Using array.map with async/await
• May, 2021 array.filter with async/await
• Apr, 2021 Map object values .toLowerCase()
• Jan, 2021 Ensure all nock mock interceptors are used
• Dec, 2020 Find value of key recursively with JavaScript

jest

• Mar, 2020 Mock require with Jest

jira

• May, 2017 Jira Cloud + ScriptRunner
• Apr, 2014 Disabling comment formatting in Jira

jq

• Oct, 2021 Filter for dates before today with jq
• Aug, 2021 Get all keys in a list of objects with JQ
• Jul, 2021 Set a value in place with jq
• May, 2021 Group by fields with jq
• Jan, 2021 Sum values with jq
• Aug, 2016 Extract keys using JQ
• Oct, 2014 Extract substring of specific values with JQ

laravel

• Apr, 2021 Check if row was created with Laravel updateOrCreate

linux

• Feb, 2018 Mount Synology HDD under Linux
• Nov, 2014 Dell XPS13/XPS15 white noise via audio
• May, 2014 Using a custom startup script for xmonad
• Apr, 2013 Basic iptables rules
• Aug, 2011 unetbootin - BOOTMGR Is Missing

macos

• Sep, 2021 Use a custom .zshrc with iTerm2
• Nov, 2015 Mounting msdos USB with permissions on OSX
• Oct, 2012 Solarized with iTerm2

netlify

• May, 2021 Return an image from Netlify functions

octokit

• Nov, 2020 Fetch all pages with Octokit pagination

pdf

• Nov, 2021 Convert a PDF to a stacked jpg

php

• Jul, 2015 The class 'APCIterator' could not be found
• Jan, 2014 PHP: return and the HEREDOC syntax

postgres

• Dec, 2020 Upgrade Postgres DB

puppeteer

• Aug, 2021 Upload an image with Puppeteer

python

• Nov, 2015 Using INI config with python.logger
• Jan, 2015 Introduction to vimrunner-python
• Feb, 2014 alembic - TypeError: Boolean value of this clause is not defined
• Jan, 2014 Python: Dynamically load all modules in a folder

ruby

• Aug, 2021 Bundler ignoring BUNDLE_WITHOUT
• Aug, 2021 BUNDLE_WITHOUT not working with development group
• Mar, 2015 Jekyll: Failed to build gem native extension

ssl

• Jun, 2015 Check if SSL certificate is SHA1 or SHA2

systemd

• Jul, 2021 Run node processes with systemd

ubuntu

• Nov, 2015 Running gpg-agent on Ubuntu
• Oct, 2013 Start PolicyKit on Ubuntu
• Aug, 2013 Installing vim 7.4 on Ubuntu
• Jan, 2013 Keyboard stops working on Ubuntu - slow-keys
• Nov, 2012 Getting Solarized working on Ubuntu

vagrant

• Oct, 2016 Using vagrant-hostmanager with centos/7
• Jun, 2015 Vagrant: Require installed plugins

varnish

• Jun, 2013 Cache a specific URL with Varnish

vim

• Jun, 2015 vim: Replace literal \n with new line

vscode

• Nov, 2021 VSCode only showing one open tab

wordpress

• May, 2019 Trigger wp_insert_post_data handler on every post in WordPress

youtube-dl

• Dec, 2020 Download multiple videos with youtube-dl