Clear unity history

Recently upgraded to ubuntu1204, it seems that unity is still quite useful, but there are many features that need to be improved, such as the inability to clearly record history.

In fact, the command can still be cleared:

1. Delete historical documents:
Rm ~ /. Local/share/zeitgeist/activity. SQLite
Zeitgeist-daemon -- replace

2. Do not record history:
Echo "locked from edits-use chattr-I to re allow"> ~ /. Local/share/recently-used.xbel & sudo chattr + I ~ //. Local/share/recently-used.xbel

3. Clear the recent open history records in gnome-mplayer and totem players:
Rm-V ~ //. Local/share/recently-used.xbel

========================================================== ======================================
Followed by the query of zeitgeist information :( Wikipedia http://en.wikipedia.org/wiki/Zeitgeist_ (framework ))

ZeitgeistIs a service which logs the users's activities and events, anywhere from files opened to websites visited and conversations. it makes this information readily available for other applications to use in form of timelines and statistics. it is able to establish relationships between items based on similarity and usage patterns by applying data association algorithms such as "winepi" and "a priori"

Zeitgeist is the main engine and logic behind gnome activity journal which is currently seen to become one of the main means of viewing and management activities in GNOME version 3.0.^[1][2]