save
OS X: Various Terminal Tricks
Wed, 2007-03-21 10:21 — NikExpanded save dialogue as default
defaults write -g NSNavPanelExpandedStateForSaveMode -bool TRUE
Disable:
defaults write -g NSNavPanelExpandedStateForSaveMode -bool FALSE
Show hidden files in finder
defaults write com.apple.finder AppleShowAllFiles TRUE
Disable:
defaults write com.apple.finder AppleShowAllFiles FALSE
Source: Mac OS X Tips
