HELP!!!!! I Lost my dock after typing command into terminal

I typed
defaults write com.apple.dock persistent-others -array-add '{ "tile-data" = { "list-type" = 1; }; "tile-type" = "recents-tile"; }'
Into terminal and now my dock is gone. When I looked in activity monitor i saw that dock keeps opening and closing. I tried re-installing mac os x but i didn't fix the problem I think that what I put into terminal was a 10.5 script however when i go on another account the dock is working.

Please any help would be really appreciated

I have no idea what that command really does, although it looks familiar.
Open the Terminal and copy/paste this.

Restart the Dock, by typing killall Dock in the Terminal. It should be back to normal now.

I then get this in terminal

look at the attached image to see what then came up in terminal. I'm not sure if that is meant to come up? but even after i typed Killall dock nothing happened

It's telling you it didn't like the syntax you used for defaults - that's all I can offer here. Did you copy the entirety of McYukon's post?

I'm just fascinated by the embedded scrollable window in the post.

Ok, I just assumed that since you can change the write to delete normally that it would work. Seems that this long string with all its "{ .etc are making it choke.

Only thing now is to delete the dock plist, which will mean that you will lose your dock configuration and need to redo them.
Goto /Users/####/Library/Preferences/ and move com.apple.dock.plist to the Trash.
Restart the dock again with "killall Dock"

@BrianLachoreVPI Thats the tag minus the &s in there.

Excellent. Learn something new every time I come in here - Thanks!

Fixed

thanks a lot finally works!!!