How to disable keyboard shortcuts in Mac OS X?

Question

I would like to disable keyboard shortcuts Command-W and Command-Q in Mac OS X 10.8 Mountain Lion.

This is because they inter

Answer 1

Following an article on how to script shortcuts I tried setting a shortcut to '' to no avail, but setting it to NULL worked fine. Here's an example:

TAB_KEY_SYMBOL="\\U21e5"
COMMAND_KEY_SYMBOL="@"
SHIFT_KEY_SYMBOL="$"

defaults write com.apple.finder NSUserKeyEquivalents "{ 'Show Package Contents' = '${COMMAND_KEY_SYMBOL}${SHIFT_KEY_SYMBOL}O'; }"

defaults write com.apple.finder NSUserKeyEquivalents -dict-add 'Add to Sidebar' '\U0000'
defaults write com.apple.finder NSUserKeyEquivalents -dict-add 'Add to Dock' '\U0000'

# kill finder and prefs daemon
killall Finder
killall cfprefsd

# *only* if absent, add bundle id to make it show up in keyboard prefs pane
defaults read com.apple.universalaccess "com.apple.custommenu.apps"
defaults write com.apple.universalaccess "com.apple.custommenu.apps" -array-add "com.apple.finder"

$ defaults read com.apple.finder NSUserKeyEquivalents 
{
    "Add to Dock" = "";
    "Add to Sidebar" = "";
    "Show Package Contents" = "@$O";
}