TIL: Today I Learned

Quick posts, with little context, that deliver excellent value

Recently added: Set a value in place with `jq`, Run `node` processes with `systemd`, Understanding .gitignore with `git check-ignore`, Using `array.map` with `async/await`, Show untracked files with `git status`

ansible

Cowsay and Ansible - 2014-05-03
Setting up Ansible for hacking - 2014-04-19
Ansible: module is missing interpreter line - 2014-04-03
Installing Ansible from source on Ubuntu - 2014-04-03
Ansible: Installing Google Chrome on Ubuntu - 2014-03-09
ansible: ImportError: No module named ansible.playbook - 2014-03-08

archlinux

TP-Link TL-WN823N on Arch Linux - 2017-01-07
Connecting to a hidden network on Arch Linux - 2016-10-20
Yubikey on Arch - 2016-10-06
YouCompleteMe on Arch Linux - 2016-08-09
Arch Linux: netctl and vpnc (Cisco VPN) - 2015-12-16

audio

Convert .wav to .mp3 and set id3 tags - 2014-12-02

aws

AWS Federated login - 2021-05-08
Fix: s3fs Permission issue on remote folders - 2015-10-22

centos

Error while loading shared libraries: libbz2.so.1.0: cannot open shared object file on CentOS 7 - 2016-11-28
Build CentOS 5 generic RPM on CentOS 6 - 2015-08-03
Use SCL packages without bash - 2015-06-01
Installing Ruby 1.9.3 on CentOS 6 - 2015-06-01
Installing ZSH 5.0 on CentOS 5.7 - 2013-03-06
Installing Vim 7.3 on Centos 5.7 - 2013-03-06

css

CSS Target Selector - 2020-12-20

eleventy

Concatenate strings in Nunjucks - 2021-04-24
Use an Eleventy filter as an `if` statement - 2021-04-18
Add a markdown filter to Eleventy - 2021-04-17

ffmpeg

ffmpeg: Create a video from time lapse photos - 2016-08-17

gatsby

Gatsby Category Count - 2020-12-19
Adding a script tag using Gatsby JS - 2020-05-21

git

Understanding .gitignore with `git check-ignore` - 2021-05-31
Show untracked files with `git status` - 2021-05-17
A better `git blame` with `--ignore-rev` - 2021-05-11
Retag a Git Tag - 2020-12-20
Restore a file without adding to the index using Git - 2020-11-29
Show all files deleted since Git commit - 2020-11-20

github

Pin GitHub Issues - 2021-05-08
Publishing a Ruby Gem to the GitHub Package Registry - 2021-05-08

golang

golang: Get last character of a string - 2014-11-25
golang: How to `go get` private repos - 2014-09-15
Golang: Using Memcached - 2014-09-09
golang: Encode/Decode arbitrary JSON - 2014-08-04
golang: invalid operation: someVar == "" (mismatched types *string and string) - 2014-07-14

gpg

gpg: connecting dirmngr failed: IPC connect call failed - 2016-03-22
gpg: can't connect to the agent: IPC connect call failed - 2016-01-12
Using GPG to securely send a message - 2015-11-18
Not enough random bytes available. [GPG Signing] - 2011-09-02

gumroad

Select a product version with Gumroad embeds - 2020-05-24

javascript

Using `array.map` with `async/await` - 2021-05-25
`array.filter` with `async/await` - 2021-05-13
Map object values .toLowerCase() - 2021-04-30
Ensure all nock mock interceptors are used - 2021-01-09
Find value of key recursively with JavaScript - 2020-12-01

jest

Mock require with Jest - 2020-03-16

jira

Jira Cloud + ScriptRunner - 2017-05-13
Disabling comment formatting in Jira - 2014-04-07

jq

Set a value in place with `jq` - 2021-07-19
Group by fields with `jq` - 2021-05-08
Sum values with jq - 2021-01-12
Extract keys using JQ - 2016-08-12
Extract substring of specific values with JQ - 2014-10-29

laravel

Check if row was created with Laravel `updateOrCreate` - 2021-04-12

linux

Mount Synology HDD under Linux - 2018-02-27
Dell XPS13/XPS15 white noise via audio - 2014-11-20
Using a custom startup script for xmonad - 2014-05-28
Basic iptables rules - 2013-04-17
unetbootin - BOOTMGR Is Missing - 2011-08-26

macos

Mounting msdos USB with permissions on OSX - 2015-11-20
Solarized with iTerm2 - 2012-10-20

netlify

Return an image from Netlify functions - 2021-05-01

octokit

Fetch all pages with Octokit pagination - 2020-11-20

php

The class 'APCIterator' could not be found - 2015-07-09
PHP: return and the HEREDOC syntax - 2014-01-10

postgres

Upgrade Postgres DB - 2020-12-20

python

Using INI config with python.logger - 2015-11-18
Introduction to vimrunner-python - 2015-01-07
alembic - TypeError: Boolean value of this clause is not defined - 2014-02-12
Python: Dynamically load all modules in a folder - 2014-01-27

ruby

Jekyll: Failed to build gem native extension - 2015-03-26

ssl

Check if SSL certificate is SHA1 or SHA2 - 2015-06-23

systemd

Run `node` processes with `systemd` - 2021-07-14

ubuntu

Running gpg-agent on Ubuntu - 2015-11-26
Start PolicyKit on Ubuntu - 2013-10-10
Installing vim 7.4 on Ubuntu - 2013-08-11
Keyboard stops working on Ubuntu - slow-keys - 2013-01-28
Getting Solarized working on Ubuntu - 2012-11-03

vagrant

Using vagrant-hostmanager with centos/7 - 2016-10-25
Vagrant: Require installed plugins - 2015-06-08

varnish

Cache a specific URL with Varnish - 2013-06-10

vim

vim: Replace literal \n with new line - 2015-06-17

wordpress

Trigger wp_insert_post_data handler on every post in WordPress - 2019-05-19

youtube-dl

Download multiple videos with youtube-dl - 2020-12-20