Why Does OS X Lion Ask for Password When Deleting Files in Home Directory?

You can do this using UI scripting. This requires enabled support for assistive devices in Universal Access preference pane. You can launch the script from the command line using osascript, but you need to have a GUI session for this to work.

Based on my older answer here, I created the following script which works on my File Vault enabled Lion. Apparently, a checkbox to disable the password altogether was removed, either by Lion itself or me enabling File Vault 2. In the latter case I cannot fix the script for you, but the linked one might work.

Change the index (6) of the menu item to click in the 9th line to select which of the options to choose.

tell application "System Preferences"
    set current pane to pane id "com.apple.preference.security"
    tell application "System Events"
        tell process "System Preferences"
            tell first window
                tell first tab group
                    click radio button 1
                    click pop up button 1
                    click menu item 6 of menu of pop up button 1
                end tell
            end tell
        end tell
    end tell
    quit
end tell

The following is the "official" method of changing this setting in AppleScript:

tell application "System Events" to set require password to wake of security preferences to false

It has two major problems:

• It's boolean (you cannot change the grace period)
• It doesn't work for me (it takes the place of the checkbox I don't have)

This solution didn't work for me, but fortunately I found another way: deleting the whole contents folder and then reinstalling iTunes (in Mountain Lion). I have a longer explanation with pictures posted on my blog if it helps:

http://scientific-ocean.com/mac-quick-tips/

If you adjusted your Mountain Firewall accordingly, i.e., you added iTunes to it, you should not experience this issue. However, for some unknown reason this issue still occurs for many people. A quick solution is simply going to the “Applications” folder, right-click on “iTunes.app”, and click on “Show package contents”. Now, delete the “Contents” folder, which eventually shows up. Next, go to http://www.apple.com/itunes/download/ and download the newest version of iTunes. After the reinstalling it, the problem should be solved.