[Mediawiki-l] Running the update.php script through command line

[Azurite]

I just got SSH access enabled for my domain, but I've never used it outside
of a work context (which is basically the finduser function).
I'm fairly sure that when I first connect, it logs me into the default
folder public_html, but it never confirms for me where I am in the
hierarchy. I'm not sure which commands to use to navigate to my MediaWiki
installation (the directory is its own subdomain, wikific), and when I get
there, whether I need to type "php maintenance/update.php" or not include
the "maintenance/" line at all.
I tried looking at existing MediaWiki documentation, but it seems a little
too "short and simple" and lacks any real explanations.
I'm always getting the "Could not open input file: filenamehere.php" error
Besides update.php and rebuildlinks.php, what are other maintenance scripts
I should run after upgrading?
Thanks!
~Azurite