[arachne] Re: Maximum length of PATH
- From: "Eric S. Emerson" <wildrice5@xxxxxxxx>
- To: arachne@xxxxxxxxxxxxx
- Date: Tue, 28 Nov 2006 20:06:00 -0500
Arachne at FreeLists---The Arachne Fan Club!
Greg,
Just like I think you did, since path is an
environment variable, I took it as a given that it's
size is limited by the size of the environment.
That may also account for the fact that I could
only get 623 characters of length with the
batch file. I'm not sure of my environment size.
Is there a utility that displays it? My DOS bible
says the environment size can be up to 32Kbytes .
Eric
On Wed, 29 Nov 2006 09:45:39 +1030 "Greg Mayman" <gmone@xxxxxxxxxx>
writes:
> Arachne at FreeLists---The Arachne Fan Club!
>
> On Tue, 28 Nov 2006 14:12:37 +0000, Udo Kuhnt wrote:
>
> > However, there is a second limit that nobody on this list seems to
> be
> > aware of: Since PATH is an environment variable, its length is
> also
> > limited by the size of the environment space. So if you have set
> /E:384,
> > then all environment variables together cannot become larger than
> 384 B.
>
> I was wondering when someone would notice that <GGGGGGGGGGGGG>
>
> > But it is rather interesting to read that MS-DOS 7 uses a much
> larger
> > command line buffer. I always thought that 128 characters is too
> > short, particularly when running programs that had originally been
> > developed for Unix.
>
> I ran into a 127 byte limit when entering stuff from the keyboard,
> but
> the 1023 limit in batch files.
>
> Why should they be different.....
>
> Yeah, I know: it's just because they are <GGGGGGGGGGG>
>
> . ,-./\
> . / \ from Greg Mayman, in Adelaide, South Australia
> . \_,-*_/ "Queen City of The South" 34:55 S 138:36 E
> . v
>
> Arachne at FreeLists
> -- Arachne, The Premier GPL Web Browser/Suite for DOS --
>
>
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