how to replace line on particular line in file[no need to write it back whole file again]
On 2018-10-13, Dennis Lee Bieber <wlfraed at ix.netcom.com> wrote:
> However -- my point was that those formats were supported natively at
> the OS level, not some language utility library working on top of the basic
> A more recent (my age shows) example would be the features in DEC VMS
> Record Management Services. Again the format was handled at the system
> service level by any language -- stream, fixed length with counts, ISAM...
Yep, and when writing C programs under VMS, you had to pay attention
to which of the underlying file "formats" you were dealing with. Only
the "stream" format worked the way that a Unix user expected. ISTR
that "stream" wasn't commonly used by programs written in other
languages (e.g. Fortran). I think "varible length record" was the one
that I most often ran into. But, it's been a _long_ time since I
worked with VMS (almost 30 years)...