Today I Learned

Usage

gem install mdtoc rake
# Update Markdown table of contents and push changes to the git repository
rake

Table of contents

• Ansible
  • Debugging
  • Ansible Galaxy
• Apache
  • Describe virtualhost configuration
• bash
  • Books
  • Command combination operator
  • Here Documents
  • Run on exit (trap)
• Chrome
  • Developer Tools
    • Troubleshooting
• Cryptography
  • Change homedir encryption password
  • Encrypt storage device
  • Generate CSR
• Docker
  • List containers by image name
  • Print volumes
  • Remove all volumes
• Firefox
  • Credit card autofill / autocomplete
  • Right-click bug with BSPWM
    • Workaround
  • Add-ons (browser extensions) in Firefox Nightly on Android
• Git
  • Initialize a repo
  • Show commit log with branches and tags
  • Create a patch
  • Create a symbolic branch link
  • Fetch changes from origin/master without checking out master
  • Clean-up local branches
  • Prune tracking branches
  • List merged branches on origin
  • See commit history for the last two commits, including the diff
  • Squash all but first commit
  • Pull a --force pushed branch
  • Change origin URL
  • Project-specific configuration
  • Convert a mercurial repo to git
  • Ignore/unignore changes to a file
  • Delete tag
  • Undo commits
  • Get default branch name
  • Set default branch
  • Github
    • Collapsable section markdown
    • Search
    • Tips
• Gnome
  • gnome-screensaver settings
    • Screensaver lockscreen background
  • GTK
  • OSD
  • Printing
• Go
  • Books
  • Vendor
• Hardware
  • Hardware info
  • System stability
  • Webcam
  • Make USB audio device the default
  • Pulseaudio: set default headphone output
  • Pulseaudio / ALSA: save pavucontrol configuration
  • Fan control
• iTerm2
  • Copy / Paste
  • Unlimited scrollback buffer
  • Avoid accidentally closing iterm2
• JavaScript
  • Books
  • Articles
  • Getting started
    • Install NVM on macOS
  • React
    • Accessibility
    • Performance
    • Storybook
  • TypeScript
• JetBrains IDEs
  • Colors
  • Fixes and Customisations
  • Avoid error when editing files on Nix filesystems
  • External Tools
  • Shortcuts
• JSON
  • Formatting
• Kubernetes
  • Minikube
• Leadership
  • Books
  • Articles
  • Courses
  • Newsletters
• macOS
  • Initial setup
  • Keyboard Shortcuts
  • Customizations
    • Reduce menu (top bar) transparency
    • Dock
    • Disable command+h (hide window)
  • KVM
    • Fix flakiness
  • Troubleshooting
    • Increase maxfiles
    • Bypass macOS app installation restrictions
    • Fix OpenSSL errors
    • Reinstall xcode
    • Remove RODE Connect virtual audio devices
    • Prevent Google Meet from changing the input device volume level
    • Restart audio system
    • External monitor flickers
• Make
  • Pass all args to target
• Man
  • Section numbers
  • Searching for documentation
• MySQL
  • Show table constraints
• Networking
  • Disable dnsmasq / systemd-resolved
  • List DNS servers
  • Show processes listening or connecting to the network
  • HTTPS SSH tunnel (port forward through jump box)
  • nmcli
  • Test performance
  • Wifi
  • Serial console
• NPM
  • Install Node and NPM using NVM
  • Linking
  • Publishing
• pfSense
  • Increase swap
  • Domain Overrides over OpenVPN
  • VPN
    • How to configure remote access on a client Linux device
  • Fix boot loop
• Pixel Art
  • Aseprite (software)
    • Keyboard shortcuts
  • Learning and tutorials
• PostgreSQL
  • Diff schemas
  • Query user password hash
  • Terminate all connections to a database
  • Show connections information
  • Log all queries
• Python
  • Books
  • Newsletters
  • Set default versions (Ubuntu 18.04)
  • Devpi
  • Import gotchas
  • Pip
• Rails
  • Common commands
  • Debugging
  • Testing
• RetroArch
  • Cores
  • RetoArch on Xbox Series
    • Configure permissions on USB disk drive
  • Recommended Games
  • Troubleshooting
• Ruby
  • Books
  • Articles and blogs
  • Newsletters
  • Getting started
    • Install Ruby on macOS
  • Gems - Frameworks and libraries
  • IDEs
    • Rubymine
    • Visual Studio Code
  • Testing
  • Gems and bundler - package managment and dependencies
  • Debugging
• Rust
  • Books
  • Articles and blogs
  • Getting started
  • Macros
  • Cargo
  • Visual Studio Code
  • Crates - Frameworks and libraries
  • Software
  • Debugging
  • Troubleshooting
• Slack
  • Useful commands
• Software Engineering
  • Books
    • Architecture and design
    • Career
    • Computer science
    • Operating systems and networking
• SSH
  • Agent forwarding
  • Share connections
• systemd
  • systemctl commands
  • journalctl commands
  • User units
    • Lingering
• tmux
  • Books
  • Common commands
  • Keyboard shortcuts
    • Scrolling
  • Usage
  • Troubleshooting
• Ubuntu
  • Applications and packages
    • Desktop environment
    • Monitoring and statistics commands
    • Search for installed applications
    • Search for Ubuntu packages by filename
    • Default application associations
    • Post-install cleanup / Uninstall packages
  • Upgrade Ubuntu from LTS to non-LTS
  • Disable release upgrade notifications
  • Disable language switcher
  • Magic SysRq Keys
  • Mount a network share in fstab
  • Preserve $PATH when using sudo
  • sysctl settings
  • Temporarily change the date/time using timedatectl
  • Wipe storage device using hdparm
  • Xephyr
  • debconf
  • Debugging and troubleshooting
    • Fix broken grub install
    • apt update 404
    • Redshift.conf is not read when it is a symlink
    • gnome-control-center segmentation fault on startup
    • SSH RSA authentication is not working
• Vim
  • Books
  • Commands
  • Tips
  • Key combinations
• Virtualbox
  • Troubleshooting
• Visual Studio Code
  • Keyboard shortcuts
  • Add CLI executable on macOS
  • Extensions
• wget
  • Download recursively
• Woodworking
  • Wood (lumber)
    • Lumber yards
    • Cost of wood
• Xorg
  • xrandr
  • xset
  • Find the program that grabbed a key combination
  • Mouse cursor theme

Table of contents generated using mdtoc.