command line interface
https://www.macworld.com/article/222596/command-line-deleting-files-folders-mac-terminal.html
Master the macOS command line: How to delete files and folders using Terminal
The command line is not only powerful, it can also be dangerous. Learn how to use commands for deleting files and folders correctly to make sure your time with Terminal is a productivity godsend instead of a complete disaster.
www.macworld.com
rm order can not retrive deleted file
rm
rm -R folderName : can drop the full path into the commander from finder
rm -i : ask one more
/Library/Preferences/Parellels
/Users/youngkim/Library/Preferences
defaults write com.apple.finder AppleShowAllFiles -bool true
defaults write com.apple.finder AppleShowAllFiles -bool false