I don't know if you have access to Cadence's Sourcelink support site but, if you do there are a lot of useful SKILL scripts as part of the Sourcelink database. Go to http://sourcelink.cadence.com. You will require a login.
One tip to searching the 800+ Custom IC SKILL Solutions posted on SourceLink is to select JUST the SKILL solutions documents for your search. From the main SourceLink search form select ONLY (deselect the other doc types and products).
Document Types + Troubleshooting Info + Solutions - check just this box
All Products + Cadence Shared Tools + SKILL - check just this box
That way when you search for an example of a SKILL procedure like dbCreatePin you will just get the SKILL solutions containing that procedure, not the other manuals, etc.
I would also recommend viewing/posting to the Custom IC SKILL forum that compliments this forum.
Sr. Technical Leader
Technical Field Operations, North America-Central Region