Unix command to require password to wake computer from sleep or screensaver

Question

Yo folks,
Just as the subject says, is there a Unix command we can send that turns on the option to require password when the computer wakes from sleep or screensaver...which is the first option in System Preferences --> Security?
I looked through the systemsetup commands and didn't find anything.
Thanks!

Answer 1

Run the following AppleScript:
set items_1 to items -18 thru -2 of (do shell script "ifconfig en0 ether")
set items_2 to ""
repeat with this_item in items_1
if this_item is greater than ":" then
set items_2 to items_2 & this_item
end if
end repeat
set the_path to "defaults read ByHost/com.apple.screensaver." & items_2
set old_string to do shell script the_path
set new_string to (items 1 thru 6 of old_string) & "askForPassword = 1;" & (items 27 thru -1 of old_string) as string
do shell script "defaults write ByHost/com.apple.screensaver." & items_2 & " '" & new_string & "'"
The necessary plist key is part of an array, and is in a file which has the computer's Ethernet address in its file name, so the script needs to handle both tasks. This change will not show up in the GUI until the account logs out and back in.
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