安装AIT驱动出错。Ubuntu系统

游云

我下了ati的ATI Driver installer，显卡是8500。安装出错：

lym@lym-desktop:~$ sudo sh ./ati-driver-installer-8.28.8.run
Creating directory fglrx-install
Verifying archive integrity... All good.
Uncompressing ATI Proprietary Linux Driver-8.28.8...........................................................
-e  ATI Technologies Linux Driver Installer/Packager
-e ==================================================
./ati-installer.sh: 165: Syntax error: Bad substitution
Removing temporary directory: fglrx-install