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perl. How to set persistent environment variables

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Top Forums Shell Programming and Scripting perl. How to set persistent environment variables
# 8  
Old 05-25-2010
Quote:
Originally Posted by Corona688
It has to be run [b]inside[/i] your own shell in order to successfully set environment variables. This means your perl script will never work -- even if perl runs, your perl interpreter will have its own separate environment.

Fortunately it's extremely easy to convert this script into a generic shell script.

Code:
export ORACLE_SID="D3771"
export ORACLE_HOME="/oracle/product/10.2.0/db_1"

You should be able to source this file fine.
It is very easy, but don't overlook the O/P's statement about string manipulation (of which we know nothing Smilie)
# 9  
Old 05-25-2010
Quote:
Originally Posted by MKNENI
I can't set this in the .profile because I keep executing the script by passing a parameter and this perl script should set the env variables based on the parameter.
That changes the problem quite a bit.

You will need to have the script execute the necessary program inside it then, so it can export things the way you want them, then launch the program with the updated environment.

Code:
#!/bin/ksh

export ORACLE_SID="D3771"
export ORACLE_HOME="/oracle/product/10.2.0/db_1"

exec my_program

Or in perl:
Code:
#!/usr/bin/perl

export_environment_as_I_please;

system("program");

# 10  
Old 05-26-2010
do you need to run ur script only with 1 setting. or do u need to change both the variables depending upon some parameters.
# 11  
Old 05-31-2010
Thanks you guys. Looks like its lot of pain using perl to set evn varialble.

I switched to shell script. That is working good.

Thanks again to everybody.

SmilieSmilie
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