On Tue, 23 Nov 2010 07:54:19 -0700, gil wrote: >Thanks. "commit" isn't really in my vocabulary. I don't think it >existed when I first brushed against Pipelines, perhaps before SFS >was a consideration.
It's always been there. It's what each stage does once it's determined it can actually run, before any of them process any records. Each stage checks its syntax, and device drivers check their devices. The latter's what's going on here: < checks whether it can read the file, and doesn't commit when it can't. > doesn't erase the old file until it's processed the new one, and it never gets to the point of processing the new one because < didn't commit. ¬R Blather, Rinse, Repeat. http://users.bestweb.net/~notr/telecom.html
