Wiki Save and Restore

It may be just me, but i would like to be able to save my wiki to disk, do some global changes, then restore some or all of it back to the wiki.
It would be really convenient if there was a save function which saved each page of my wiki as a html/text file with the name of that page. And a restore function which allows the restoration of the file to the wiki.

Something like this -

SAVE PAGE

get wikipagename from user
Text file = Read (wikipage)
Save(text file) as wikipagename text file

RESTORE PAGE

get wikipagename from user
get textfilename from wikipagename
wikipage = Read(textfilename)
save(wikipage) as wikipagename

If you know what i mean.

Regards,
Peter

P.S. It may be a good thing to have a global save/restore where all pages are saved, or an entire disk directory is restored.