TimeMachine

  • Compress sparse bundle disk image mounted over a network: 

    1$ sudo hdiutil compact /Volumes/time-machine-backups/my-machine.sparsebundle

PluginKit

  • List available PluginKit extensions: 

    1$ pluginkit -mAvvv

  • Get infos on a PluginKit extensions: 

    1$ pluginkit -m -v -i com.agilebits.onepassword7.1PasswordSafariAppExtension

  • Enable a PluginKit extensions: 

    1$ pluginkit -e use -i com.agilebits.onepassword7.1PasswordSafariAppExtension

Kernel extensions

  • List non-system kernel extensions currently loaded: 

    1$ kextstat | grep -v com.apple

  • List non-system kernel extensions currently loaded: 

    1$ sudo kextunload -b com.google.drivefs.filesystems.dfsfuse

Network

  • Clear local DNS cache: 

    1$ sudo killall -HUP mDNSResponder

Filesystem

  • List all partitions of all disks: 

    1$ diskutil list

  • Remove the first partition of the fourth disk: 

    1$ diskutil eraseVolume free free /dev/disk4s1

  • List shared folders in iCloud: 

    1$ mdfind -onlyin "$HOME/Library/Mobile Documents/" 'kMDItemIsShared == 1'

  • Install Steam in a case-insensitive disk image  .