Why isn't the enable prefetch command working?

Hi Linc....Thanks. I'll take your word for it......and I say that only because I had just issused the command to disable prefetching right before I typed in the re-enable command. So.....it should have been disabled.

Instead of using the command above to re-enable it, I tried this one instead that I read about somewhere:

defaults write com.apple.safari WebKitDNSPrefetchingEnabled -boolean true

.....and I got no error on that one.

Is there a command that can be issued to tell whether pre-fetching is on or off?

This is what I got when I entered the 'defaults' command above:

2013-11-19 18:48:11.458 defaults[971:507]

The domain/default pair of (/Users/xxxxxxxxxxxxxxxx/Library/Preferences/com.apple.Safari, WebKitDNSPrefetchingEnabled) does not exist

....where the x's are my name.

Sorry to bother you Linc.....but I'm not getting what this means.

OK....I'm getting lost in these commands.....I apologize for being thick.

Are these the correct commands for doing this?

Disable pre-fetching use this command:

defaults write com.apple.safari WebKitDNSPrefetchingEnabled -boolean false

Enable pre-fetching use this command:

defaults delete com.apple.safari WebKitDNSPrefetchingEnabled