Re: reading environment variables into gp?

["Prof. Skoruppa" <skoruppa@math.uni-siegen.de>]

Hi John,

str = Strexpand("$HOME") and val = eval( Strexpand("$NUMBER")) do these 
jobs for me.
---Nils

---
Nils-Peter Skoruppa
Algebra and Number Theory
University of Siegen, Germany
http://www.countnumber.de


On Thu, 15 Dec 2005, Prof. J. E. Cremona wrote:

> It would be very helpful if a gp script could read the value of a (unix)
> environment variable, into a string or integer variable.
>
> For example, something like
>
> s=getenv("MY_ENV_VAR");
>
> would result in s being a string variable.  The C function getenv() does
> this, so perhaps it would be simply a question of install-ing it?
>
> Motivation:  I can run a script simultaneously on N processors in a
> cluster;  the job on the i'th processor sets the environment variable
> SGE_TASK_ID to the integer value i.  Now, I would like each job to know
> the value of i so that I can select a parameter from a list -- so that
> all processors can use the same script instead of having to edit N
> separate ones.
>
> Apologies if this is already possible -- I did look in the manual and
> also searched the list archives!
>
> John
>
> --
> Prof. J. E. Cremona             |
> University of Nottingham        | Tel.:  +44-115-9514920
> School of Mathematical Sciences | Fax:   +44-115-9514951
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>
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