We have several websites running on our web space.
The root directory is occupied with a Typo3 website.
I wanted to include a new WordPress installation into a subdirectory.
Unfortunately i put the wordpress site also into the root directory and overwrote the index.php file.
The typo3 site is not accessible any more via the URL. However from the admin interface everything seems to be fine. I do not have access to this IF at the moment (its a bit tricky) which is why i suggest only the index file is destroyed.
Is there a way to create a new index file for this specific installation?
You can (if it wasn’t modified) use the index.php that was delivered with the TYPO3 core version you are using. You can download most versions of the TYPO3 core (since TYPO3 4.2 or so) at http://get.typo3.org/