sudo xattr -rd com.apple.quarantine Aurora\ HDR\ 2017.app

This might be necessary after installing an Xcode or macOS beta.
sudo xcode-select --switch /Application/Xcode-beta.app

1. Find out app identifier
   osascript -e 'id of app “Subtitle Edit”'
2. defaults write AppIdentifier NSRequiresAquaSystemAppearance -bool Yes

chflags hidden ../BasiliskII_Prefs

chflags nohidden ../BasiliskII_Prefs

defaults write com.apple.finder AppleShowAllFiles YES

dns-sd -Gv4v6 $BONJOURNAME

1. Check for registered applications, e.g.
   /System/Library/Frameworks/CoreServices.framework/Frameworks/LaunchServices.framework/Support/lsregister -dump | grep Transmission
2. Unregister
   /System/Library/Frameworks/CoreServices.framework/Frameworks/LaunchServices.framework/Support/lsregister -R -f -u /Applications/Transmission.app

sudo softwareupdate -ia

sudo softwareupdate --fetch-full-installer [--full-installer-version 10.15]

sudo /Applications/Install\ macOS\ Catalina.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume

sudo softwareupdate --ignore "macOS Catalina"

1. Create a mountpoint anywhere
   mkdir /tmp/manuals
2. Mount it
   sshfs -o follow_symlinks,volname=Manuals john:/yoko/manuals /tmp/manuals

lsof -nP +c 15 | grep LISTEN

1. cupsctl WebInterface=yes
2. Visit http://localhost:639/printers/

1. Check for DeviceURI lines in /etc/cups/printers.conf

1. cupsctl WebInterface=yes
2. Open http://localhost:631/printers in your web browser
3. Click on the printer you want to change. From the Administration drop down, select Modify Printer.
4. Log in with your local admin account
5. Select the new printer IP either from “Discovered Network Printers” or add it manually with Other Network Printers. Make sure that you keep the same connection protocol as it says in Current Connection.

1. sudo mdutil -a -i off
2. sudo mdutil -a -i on

defaults write com.apple.finder QuitMenuItem -bool true; killall Finder

1. Restart Finder :/