[SHELL] script in script

[mopsos]

Hi,

I have a problem with the execution of a script in a script.
I want recover a variable in a script and test this in a other .

For exemple :
A script : sc1.sh

#!/bin/sh
var=3

A script : sc2.sh

#!/bin/sh
sh /folder/sc1.sh
if [ var -eq 3 ]
echo "goods"
fi

But this is bad.

I try with export var , but it's not good too.
Can you say me how can I do this?

Thx.