[Nottingham] named pipes (fifo) help please

[Martin Garton]

> Is the "mv" still atomic even though the old file is getting deleted? 

yes. (see man 2 rename)

> Will this all be cached in RAM by the kernel or will my HDD get 
> thrashed?? (Seems to work ok and the HDD gets hit only occasionally, so 
> the changes must be getting cached.)

Will be cached as normal (i.e., only written out occasionally unless
memory is tight).  If it's a concern, you could always use ramfs.

-- 
Martin.