OOPS . . . That was supposed to say "El Capitan Dock". 
1. Launch the Terminal app from the /Applications/Utilities folder.
2. Type the following in the Terminal:
defaults write com.apple.dock mineffect suck; killall Dock
3. Hit your "return" key.
4. If it asks you for your password -- probably not -- type it.
5. Enjoy! From now on, your apps and windows will use the "suck" animation when minimizing to the Dock.
To return to your previous Dock animation, type the following in the Terminal and hit your "return" key:
defaults delete com.apple.dock mineffect && killall -INT Dock
If you want to actually restore the OS's default Dock -- that is, without any folders, apps or other items you may have added to it -- type the following command in the Terminal, and then hit your "return" key:
defaults delete com.apple.dock; killall Dock
It's nothing fantastic, but it is a little different.
1. Launch the Terminal app from the /Applications/Utilities folder.
2. Type the following in the Terminal:
defaults write com.apple.dock mineffect suck; killall Dock
3. Hit your "return" key.
4. If it asks you for your password -- probably not -- type it.
5. Enjoy! From now on, your apps and windows will use the "suck" animation when minimizing to the Dock.
To return to your previous Dock animation, type the following in the Terminal and hit your "return" key:
defaults delete com.apple.dock mineffect && killall -INT Dock
If you want to actually restore the OS's default Dock -- that is, without any folders, apps or other items you may have added to it -- type the following command in the Terminal, and then hit your "return" key:
defaults delete com.apple.dock; killall Dock
It's nothing fantastic, but it is a little different.
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