Is there a programme which would allow me to run automated Google (or other) searches overnight? I can imagine something which would let me build advanced searches, and then run them at pre-determined times, dumping the results into an html file.

This would save me a bit of work, as I would be able to build a search like this (a made-up example, but never mind):

drainage ~systems "plastic pipes" OR "plastic pipelines"

and run it say ... once a month at 1:30 as a cron job. It seems like something which could be implemented, but I can't find anything which does this.

Just wondering ...