Wouldn't the better solution to that problem be to prepend the $PATH variable with PandaRoot's ROOT dir? Like
export PATH="$SIMPATH/bin:$PATH"
By the way, the line in my config.sh looks like this
export PATH="/home/ikp1/herten/fairsoft/extpkg/bin:/private/cuda-5.0/bin:/home/ikp1/herten/bin:
/usr/lib64/mpi/gcc/openmpi/bin:.:/home/ikp1/herten:/usr/local_64/bin:/usr/local/bin:/usr/bin:/bin:
/usr/bin/X11:/usr/X11R6/bin:/usr/games:/opt/bin:/usr/lib/mit/bin:/usr/lib/mit/sbin:
/usr/lib/qt3/bin:/home/ikp1/herten/programme/sublime-text-2"
(with no spaces of course)