Using Shellscript variable in build.xml

[jhoomsharabi]

I am using shellscript task of ant-contrib in one of my target, which looks 
like this:
 
    <shellscript shell="bash">
 
           KAR=`echo ${adapter-active-directory} | awk -F. '{print $1}'`
           MAR=`echo ${adapter-active-directory} | awk -F. '{print $4}'`
 
    </shellscript>
 
    <echo message="First: ${KAR}"/>
    <echo message="Fourth: ${MAR}"/>
 
 
How I can use the shell script variables “KAR” and “MAR” outside of shellscript 
task, like I am trying to echo the shell script variables but getting error
 
Property "KAR" has not been set
     [echo] First: ${KAR}
Property "MAR" has not been set
     [echo] Fourth: ${MAR}
 
Any help in this regard will be highly appreciated.