#!/bin/sh
clear
GLOB1=GLOBAL_VAR
unset  GLOB2
export GLOB1 GLOB2
. ./child.sh
./child.sh
echo -ne "In $0 CHLD1: $CHLD1 \n"
echo -ne "In $0 CHDL2: $CHLD2 \n"
echo -ne "In $0 GLOB1: $GLOB1 \n"
./child1.sh