Export of variables in Bourneshell

[Rezabash]

How do I export and import a given variable among several bourne shell scripts ? I would like to be able to be able to update the variable in several different scripts.

 

[olded]

Hi:

I don't understand your question completely. If a parent script calls a child as in this example:

#!/bin/sh
# parent.ss

vara=/usr/bin; export vara
echo "calling a.ss"
a.ss
echo "calling b.ss"
b.ss
# end example

the two child scripts inherits the parents shell including variable vara provided vara is exported.

(if you're interested, check out thread 822-255445 for a discussion on how a child shell can change the parent).

Regards,


Ed

 

[Rezabash]

How could I find Thread nr: 822-255445 ?
Could any body post it to me ?

 

[KenCunningham]

I think there's a extra space in the address. Just try clicking on:

thread822-255445

Cheers.

 

[ls62]

If you want the parent to inherit any of the child's variables (that you set in the child script) execute the child script as follows:

#
# parent script
#
. child_script
#
#

Note: its "." space, then your child script.

Anything set in the child should stay in effect when you return from the child.

Lee