Setting temporary environment variables from a script, probablenewbie question

[Peter Davie]

Hi,
I'm having a problem with setting environment variables that are only supposed to exist in that terminal session. The script is shown below.

echo Setting LENZ Development environment variables.
echo
echo Please Note: the CLASSPATH variable is altered for the duration of
echo this session.
cd build
BUILD=$PWD
echo Build: $BUILD
cd ../src
SRC=""> cd ..
CLASSPATH=$BUILD:$SRC:.
export BUILD SRC CLASSPATH
echo Enviroment set up: OK

When the script runs the "echo $BUILD" line shows the correct value, if I type the same thing at the command prompt I get a balnk.

There is probably something dumb I'm not doing. My guess is that it is something to do with a shell script running in its own session. If that is the case, how do I overcome this? Any help appreciated.
Thanks,
Peter

Peter Davie Jade Software (M) Sdn Bhd www.jadesoft.com Strategic IT Consulting