How to delete the history and cache in Opera Mobile (10.1) via shell? I run Opera Mobile 10.1 on Android. My device is rooted. How can I clear the history and cache of the browser via shell?
As su, removing

/data/data/com.opera.browser/opera/profiles/smartphone/cookies4.dat
/data/data/com.opera.browser/opera/profiles/smartphone/cache
/data/data/com.opera.browser/opera/profiles/smartphone/cacheO

and a

/system/xbin/busybox killall -9
com.opera.browser

afterwards doesn't seem to do the job. Afterwards, bookmarks etc. are still there.
In Opera Mini I found it easy to just delete

/data/data/com.opera.mini.android/cache/webviewCache
/data/data/com.opera.mini.android/databases

but unfortunately, Opera Mini in it's current version has a bug and doesn't work on most devices.
Edit:
Another approach I tried is to kill the Opera process, then set an entry in the opera.ini, referring to http://www.opera.com/support/usingopera/operaini/#private:
[Clear Private Data Dialog]
CheckFlags=1023

but it doesn't cause Opera to clear the history and cache after a restart.
With Opera Mobile open, 


Click on the Wrench Icon
Click on Settings
Scroll down and click on Privacy
From there you should see Options to Clear History, Password, Cookies, Cache, and Shared Locations.