Karim Belabas on Thu, 15 Dec 2005 15:06:57 +0100


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Re: reading environment variables into gp?


* John Cremona [2005-12-15 14:57]:
> 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?

Have a look at Strexpand

> Apologies if this is already possible -- I did look in the manual and
> also searched the list archives!

(15:03) gp > ???environment
Strexpand

Cheers,

    Karim.
-- 
Karim Belabas                  Tel: (+33) (0)5 40 00 26 17
Universite Bordeaux 1          Fax: (+33) (0)5 40 00 69 50
351, cours de la Liberation    http://www.math.u-bordeaux.fr/~belabas/
F-33405 Talence (France)       http://pari.math.u-bordeaux.fr/  [PARI/GP]