environment variable


 
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# 1  
Old 06-11-2007
environment variable

Hi,

I have to set bunch of variables and all other programs like make,
perl will use them ..

Here are my constraints and requirements ...

The variables have to be set by executing a script that runs
in c shell. I cannot source the script since people who use this
script might be on other shell (bash, ksh)

When I use setenv in a script and execute that script then
I dont see these values getting reflected in current shell.
That is, once the script comes out the env. variable is not
set to expected value.

However, when I source the script the value is set properly.

What is the way out ?

Regards,
Sharan
# 2  
Old 06-11-2007
I dont use c-shell. But I assume this should work.

Code:
. ./env.csh

env.csh is the script which contains the env variables.
# 3  
Old 06-11-2007
That works in korn shell. In C shell it can be executed by simply typing the script name. But the point is that if the script is executed this way then variables set
using setenv are not visible in shell where script got executed
# 4  
Old 06-11-2007
Code:
source ./env.csh

# 5  
Old 06-11-2007
I think I did not communicate properly ..

I cannot use the above approach because the script can be run by users
who might not be on korn or bash. So sourcing is ruled out and the
script has to be executed. If that is done then the variables set using
setenv are not seen once I come out of the script or in other programs
like make files ..
# 6  
Old 06-11-2007
Put your script into part of the login script - I assume csh logins respect /etc/profile.
csh supports functions, I think. Create a function in /etc/profile. When the user needs to create the variable, she types the function name at the command line.
# 7  
Old 06-11-2007
Well that (putting into login script is not a good idea for me) since these are
project specific variables and one might be doing multiple projects at the
same time. Is is guaranteed that these functions will run if called from
any shell like korn or bash, because that is the primary reason why things
are getting so complicated for me.
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