All things learnt

Sorted chronologically.

June 2021

About mypy’s unreachable code functionality on June 21, 2021
About jq’s --slurp option on June 17, 2021
About mypy’s reveal_type and reveal_locals functions on June 16, 2021
That mypy only type-checks functions that have at least one type annotation on June 16, 2021
About git log -G on June 2, 2021

May 2021

About the :ALEInfo command on May 25, 2021
About Ubuntu’s alert Bash alias on May 14, 2021
About Vim’s semi-colon search offset on May 14, 2021
The ISO-3166 codes for the United Kingdon are inaccurate on May 12, 2021
That Vim’s uppercase marks are global and persistent on May 6, 2021

April 2021

Sensitive Terraform Cloud variables are included in Sentinel mocks on April 28, 2021
The correct sequence of SQL statements for dropping a role on April 28, 2021
Python’s csv.writer function defaults to Windows line endings on April 20, 2021
You can use shuf to take random samples of lines on April 14, 2021

March 2021

That vim-polyglot conflicts with Hub when creating pull requests on March 30, 2021
About git-absorb on March 28, 2021
JSON is valid YAML on March 26, 2021
How to convert SSH2 public keys to OpenSSH format on March 26, 2021
How to include the date in git reflog output on March 25, 2021
About xargs -t on March 22, 2021
What the sections of the Unix manual are on March 22, 2021
About delta, a viewer for Git and diff output on March 19, 2021
You can have class-scoped autouse pytest fixtures on March 16, 2021
That software can be “free as in mattress” on March 15, 2021
systemd sends SIGKILL signals after waiting for TimeoutStopSec seconds on March 12, 2021
iTerm2’s “Cursor boost” feature will cause everything to appear dimmed on March 12, 2021
pdbpp has a useful ‘sticky’ mode on March 11, 2021
systemd timers can be stopped on March 9, 2021
You can use Git log to view the evolution of a function on March 5, 2021
To prefer dateutil over pytz on March 4, 2021
Pytest doesn’t play nicely with ipdb on March 2, 2021

February 2021

Chrome has a flags page for enabling experimental features on February 16, 2021
How to use custom functions with :cdo on February 15, 2021
The order of permissions matters with chmod on February 6, 2021
About Github’s @me search term on February 5, 2021
Recruiters talk about T-shaped leaders on February 3, 2021

January 2021

Virgin Media’s “Web Safe” product uses DNS on January 29, 2021
How to scroll horizontally with a mouse on January 26, 2021
You can take screenshots with Chrome DevTools on January 25, 2021
You can arbitrarily chain Python comparison operations on January 15, 2021
How to pipe an argument list into Vim on January 15, 2021
How to copy the current filepath to the system clipboard in Vim on January 12, 2021
How to search for fixed strings with grep and ripgrep on January 12, 2021
How to easily disable a CircleCI workflow on January 8, 2021
BBC Sounds only works on Alexa if the language setting is UK English on January 7, 2021
How temporary files are removed on MacOS on January 7, 2021

December 2020

You can define custom file-type filters in ripgrep on December 29, 2020
How to enable Docker BuildKit in MacOS Docker Desktop on December 29, 2020
You can specify the file-type for bat on December 21, 2020
About envsubst on December 19, 2020
How to add project-specific Vim settings on December 18, 2020
You can stack pytest’s parametrize decorators on December 16, 2020
About YAML’s node anchors and aliases on December 11, 2020
You can label parameterized fixtures with pytest on December 11, 2020
Universal Ctags can index more things than I realised on December 10, 2020
A better way of configuring mypy on December 10, 2020
How to spell-check markdown repos on CircleCI on December 7, 2020
How to set per-project ripgrep and fzf exclude rules on December 4, 2020
Vim-markdown has some useful commands on December 4, 2020
GSuite’s “Groups Admin” role can read any group email on December 2, 2020

November 2020

How to run Jekyll in a Docker container on November 30, 2020
About how to use keywordprg effectively on November 27, 2020
How to configure ctags to parse Terraform files on November 26, 2020
You can easily share 1Password items via a link on November 23, 2020
You can convert a Slack group direct message chat into a private channel on November 20, 2020
How to use Bandit with Vim’s quickfix list on November 19, 2020
Exuberant-ctags has been superceded by Universal-ctags on November 16, 2020
About column on November 12, 2020
You can hide night-time hours in Google calendar on November 6, 2020
You can run :grep without using parent shell process on November 4, 2020
There’s a QuickFixCmdPost event in Vim on November 4, 2020

October 2020

You can jump to previous quickfix lists in Vim on October 31, 2020
How to embed markdown content in a Github code block on October 27, 2020
You can create QR codes for WiFi networks on October 27, 2020
fd has an option for searching filepaths on October 23, 2020
datetime.datetime is a subclass of datetime.date on October 22, 2020
The keyboard shortcut for grabbing a MFA code in 1PW on October 22, 2020
How to use AWS profiles that require MFA on October 21, 2020
About the difference between minimising and hiding windows in MacOS on October 19, 2020
About readonly Bash variables on October 13, 2020
About shellcheck on October 12, 2020
About pip-licenses on October 8, 2020
About Bash’s DEBUG signal on October 7, 2020
How to resolve Git rebase conflicts on renamed files on October 5, 2020
There is a “Bongcloud” chess opening on October 2, 2020

September 2020

How to use xargs with printf on September 29, 2020
AWS ASGs have an ‘instance refresh’ feature on September 28, 2020
The MacOS keybinds for en- and em-dashes on September 25, 2020
How to read from one buffer to another in Vim on September 23, 2020
SSH config supports multiple host patterns in one block on September 23, 2020
There’s a Chrome extension for switching AWS IAM roles on September 22, 2020
YAML has several string-parsing gotchas on September 21, 2020
Javascript’s unary + operator casts null to zero on September 21, 2020
How to count lines of code in a Git repo for a given commit on September 17, 2020
About Vim’s :helpgrep command on September 16, 2020
Vim recommends using Emacs-style key bindings in command mode on September 16, 2020
How to conditionally include items in a Terraform list on September 15, 2020
You can change the font in Slack with /slackfont $font on September 12, 2020
You can display the typed text in Alfred in a huge typeface on September 7, 2020
Python 3.7 supports postponed evaluation of annotations on September 4, 2020
Vim doesn’t create the persistent undo folder automatically on September 4, 2020
How to use type annotations with Python’s csv module on September 3, 2020
How to configure Alfred’s Bear workflow to open notes in the main window on September 2, 2020

August 2020

About better YAML file folding in Vim on August 28, 2020
OpenDNS provide free porn-blocking DNS servers on August 27, 2020
AWS Availability Zones have counter-intuitive IDs on August 25, 2020
You can rate-limit issues using a Sentry DSN on August 24, 2020
How to list pages with matching tag in Hugo on August 17, 2020
About :help macvim on August 17, 2020
About Vim’s :diffthis command on August 17, 2020
About the stationery pad feature in Finder on August 14, 2020
About pngcrush on August 14, 2020
Asana has some magic search terms on August 12, 2020
You can have SASS asset pipelines in Hugo on August 11, 2020
About text fragments on August 10, 2020

July 2020

Renaming a Terraform module is dangerous on July 23, 2020
Where authentication for the ubuntu user on a EC2 instance is defined on July 22, 2020
About the phrase “Parking downhill” on July 21, 2020
About the MacOS screencapture utility on July 20, 2020
About Quitter on July 20, 2020
About Alfred’s snippet collections on July 20, 2020
About Alfred’s clipboard history feature on July 20, 2020
About Twitter’s min_faves search filter on July 16, 2020