From time to time, I make lots of changes into the mediawiki. How can I delete the unwanted history of a page?Start the command line, and go to the maintenance directory of the mediawiki installation. Finally, enter the following command:
# php deleteOldRevisions.php --delete
Note: You have to have php5 installed, in order to execute this command. Depending on your system configuration, on Dreamhost, it is /usr/local/dh/cgi-system/php5.cgi instead.