Sure - Here is the script:
====================================================
#!/usr/local/bin/perl
$ENV{P} = "Hello World" ;
print "\nEnvironment Variable P = $ENV{P}\n\n" ;
print "In this shell type \'echo \$P\'\n" ;
$pid = system("$ENV{SHELL}") ;
waitpid($pid,0) ;
print "\n$0 is now complete\n" ;
====================================================
And here is the output:
====================================================
:-> ./a.pl
Environment Variable P = Hello World
In this shell type 'echo $P'
crumpf@ronin /home/crumpf :-> echo $P
Hello World
crumpf@ronin /home/crumpf :-> exit
exit
./a.pl is now complete
:->
====================================================
Hope this helps.
-Chris
-----Original Message-----
From: Torbjørn Lindahl [mailto:lindahl@;stud.ntnu.no]
Sent: Wednesday, November 06, 2002 2:10 PM
To: [EMAIL PROTECTED]
Subject: RE: [Perl-unix-users] setting environmental variables
Could you show me a working example of this?
Regards,
Torbjørn Lindahl
On Wed, 6 Nov 2002, Rumpf, Christopher wrote:
> I got around it one by cheating (hack).
>
> I set the env variable...then just spawned $ENV{SHELL} which inherits
> the var you set earlier - and then just waited for the pid of the
> spawned SHELL process to return before exiting the perl script.
>
> Just an idea which may work for you.
>
> Gl.
>
> -Chris
>
> -----Original Message-----
> From: Bayard Bell [mailto:Bayard.G.Bell@;morganstanley.com]
> Sent: Wednesday, November 06, 2002 1:38 PM
> To: Torbjørn Lindahl
> Cc: [EMAIL PROTECTED]
> Subject: Re: [Perl-unix-users] setting environmental variables
>
>
> This can't work. Perl is running as a child process. Parents can't
> inherit the environments of their children. Environment settings can
> only be propagated to children.
>
> Torbjørn Lindahl wrote:
> >
> > Hi list,
> >
> > how can I set an environmental variable from within perl - so that
> > it will be valid after the perl script has completed as well?
> >
> > i have done the following...
> >
> > $ENV{'MY_ENV_VAR'}="Some value";
> >
> > ...and in shell...
> >
> > echo $MY_ENV_VAR
> >
> > ...but no good.
> >
> > I also tried...
> >
> > system("export MY_ENV_VAR='Some value'");
> >
> > ...but didnt work either.
> >
> > Regards,
> > Torbjørn Lindahl
> >
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