I was thinking to write skill file which can
be loaded in virtuoso to get every information about any view type like
schematic, layout and symbol to automate the process.
Information can be how many shapes, components, wires etc are there.
Is this possible or do we already have any such file?
Good luck then. I still have no idea what you really mean by "every information". The database contains an awful lot of information, and lots of complex relationships between various objects. It's highly unlikely anyone has written what you're after without you being a bit more specific (and even then I'd be surprised if anyone has written anything quite like this).