what is the max file size on UNIX?

what is the max file size on UNIX?

2.0GBThis is due to the fact that an fseek function call which is used to access any file at a specific offset takes a signed long integer as the offset parameter - and a signed long integer has a limit on its addressability 2^31

It depends on which Unix you're talking about, and which filesystem you're using.For instance, some flavors of Linux have a 2GiB max filesize, unless the various programs are compiled with special options. The BSDs, on the other hand, can (mostly) deal with TiB sized files gracefully - except some programs (still) assume that you only can have a maximum size of 2 GiB.So, in short - 2GiB is the least-common-denominator of 'max file size', but most modern Unices can deal with bigger. At least some of the time.