preserve env when run ksh

[Lai Nee Shyang_1]

Hi There,

Can I run ksh or sh (spwan a shell) but inherit the parent's env setting (.profile) ??

Not sure if this is posted before, if yes please direct me to the relevant posting.

Thank u.

Lai

[Nicolas Dumeige]

Hello,

Sub shell normaly get their ancestor environnement.

Can you be more specific ...

Cheers

Nicolas

[Mark Grant]

YOu can only do this by exporting the variables from the parent ("export VARIABLE") or, in your case, re-reading the .profile using ". .profile". If the sub-shell is started via "exec" you can give it a parameter of "-" to make it a log in shell.

[Lai Nee Shyang_1]

Hi ,

Sorry, you are right. comparing the env before and after I do a ksh, the env are the same. But somehow PS1 setting seems to be lost.

Is there a way to preserver PS1 setting then ?


Thanks

Lai

[Lai Nee Shyang_1]

Hi Mark and Nic,

THanks.. I think I got it.

Lai

[Bharat Katkar]

Sub shell normally inherit all the exported variables. And about env variable, they are always exported.
For local varibale like say we have VAR1 then:
#
# VAR1=green
# echo $VAR1
green
# ksh
# echo $VAR1 (** nothing is displayed below)

# exit
# export VAR1=green
# ksh
# echo $VAR1
green
#
# exit
# echo $VAR1
green
#

I hope this makes it clear.

[Jose Mosquera]

Hi,

From your .profile file or inside of your current environment invokes the execution of the new deppending environment throught the following sintax:
. ./new_script
^
This first dot is the key!

Where new_script is the file that contains the dependences of variables defined in the file .profile.


Rgds,