#!/bin/bash usage() { echo "Usage: ./envsetup.sh " echo " VER : mandatory, support '20' or '21' now" } echo "Set ISP HW VERSION to: ${1}" set_isp_hw() { unset ISP_HW_VERSION export ISP_HW_VERSION=-DISP_HW_V${1} env | grep -q ISP_HW_VERSION && echo "Success !" || echo "Failed !" } case $1 in 20) set_isp_hw $1 ;; 21) set_isp_hw $1 ;; 30) set_isp_hw $1 ;; *) echo "Wrong ISP HW VERSION !" usage ;; esac