RE: setting unix command through perl script

Hi,

OK. Thanks.

IS there any other mechanism to achieve this??

Regards,
Irfan

-----Original Message-----
From: Martin Barth [mailto:martin@xxxxxxxxxx]
Sent: Thursday, April 17, 2008 1:01 PM
To: beginners@xxxxxxxx
Subject: RE: setting unix command through perl script

Hi

your "command" is executed. it changes the environment of the shell you
spawn with qx(); but after this statement your shell dies and it seems
that
nothing happend..

it is simply impossible to change the environment of a parent when
you're a
child.

maybe you can add this line to your shell configuration file.
(.bash_profile or .zshrc ...)

Regards Martin

On 9:05:15 17/04/2008 <Irfan.Sayed@xxxxxxxxxxxxx> wrote:
I want to execute "export CCASE_NO_FILE_HEADER=yes" command in Perl
script.
If I run this command on bash prompt then it is executing properly but
if I try to execute this command through perl script then it is not
executing at all

How should I achieve this . is there any another way.

Please help.

Regards,
Irfan

-----Original Message-----
From: Kenneth Wolcott [mailto:kennethwolcott@xxxxxxxxx]
Sent: Thursday, April 17, 2008 12:05 AM
To: beginners@xxxxxxxx
Subject: Fwd: setting unix command through perl script

Oops -- did reply and instead of reply-all :-(

---------- Forwarded message ----------
From: Kenneth Wolcott <kennethwolcott@xxxxxxxxx>
Date: Wed, Apr 16, 2008 at 11:33 AM
Subject: Re: setting unix command through perl script
To: martin@xxxxxxxxxx


Agreed that the parent process in which perl was invoked will not be
changed
by the perl script.

What is the overall objective?

Try to do everything you need to do inside the perl script, or
everything
you need to do outside the perl script.

HTH,
Ken Wolcott


On Wed, Apr 16, 2008 at 5:31 AM, Martin Barth <martin@xxxxxxxxxx>
wrote:

i think this is not possible.

if you start a new process (shell) it gets the environment of its
parent
process. but if you manipulate the environment in a child the
parent will
not notice this..

for example

$ bash
$ export FOO=BAR
$ echo $FOO
BAR
$ exit
$ echo $FOO


Regards Martin


On 14:20:18 16/04/2008 <Irfan.Sayed@xxxxxxxxxxxxx> wrote:
I tried the line : $ENV{CCASE_NO_FILE_HEADER} = 'yes';

But still the value is not getting set.

Please help.

Regards,
Irfan

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TSINDIA - Production Line
Individual Software Solutions - UMO
T-Systems India Private Limited, Pune
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-----Original Message-----
From: Rodrick Brown [mailto:rodrick.brown@xxxxxxxxx]
Sent: Wednesday, April 16, 2008 5:04 PM
To: Sayed, Irfan
Cc: beginners@xxxxxxxx
Subject: Re: setting unix command through perl script

On Wed, Apr 16, 2008 at 7:05 AM, <Irfan.Sayed@xxxxxxxxxxxxx>
wrote: Hi All,



I need to execute the "export CCASE_NO_FILE_HEADER=yes"
command through Perl script.



What I did is qx(export CCASE_NO_FILE_HEADER=yes); but still
the value for CCASE_NO_FILE_HEADER is not getting set to
"yes"


Regards,

Irfan





With Perl you can get and set environment variables through using
%ENV
ie. $ENV{FOO} = 'bar'

--
[ Rodrick R. Brown ]
http://www.rodrickbrown.com
http://www.linkedin.com/in/rodrickbrown

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