linux下把环境变量的设置export 放到shell 脚本中？
我想用脚本设置环境变量，想把export放到脚本里。这是我写的脚本：export.sh
#!/bin/sh
export $='/opt/Qtopia4.4.3/bin:/sbin:/usr/sbin:/bin:/usr/bin'
export QPEDIR='/opt/Qtopia4.4.3'
export QTDIR='/opt/Qtopia4.4.3'
export QT_QWS_FONTDIR='/opt/Qtopia4.4.3/lib/fonts/'
export QT_PLUGIN_PATH='/opt/Qtopia4.4.3/plugins:/opt/Qtopia4.4.3/qt_plugins/'
export LD_LIBRARY_PATH='/opt/Qtopia4.4.3/lib'
echo "IT IS OK"

用sh 执行是没有效果的，但用source 确被告知-/bin/sh: source: export.sh: not found  

大家看看，我该怎么做呢？？谢谢大家


------解决方案--------------------
source export.sh 不行吗
------解决方案--------------------
去掉#!/bin/sh

------解决方案--------------------

C/C++ code

#!/bin/bash
export $='/opt/Qtopia4.4.3/bin:/sbin:/usr/sbin:/bin:/usr/bin'
export QPEDIR='/opt/Qtopia4.4.3'
export QTDIR='/opt/Qtopia4.4.3'
export QT_QWS_FONTDIR='/opt/Qtopia4.4.3/lib/fonts/'
export QT_PLUGIN_PATH='/opt/Qtopia4.4.3/plugins:/opt/Qtopia4.4.3/qt_plugins/'
export LD_LIBRARY_PATH='/opt/Qtopia4.4.3/lib'
echo "IT IS OK"

#chmod 755 export.sh
#source export.sh

------解决方案--------------------
. ./export.sh

------解决方案--------------------
第一行改成#!/bin/bash