-sudo echo export PATH=$PATH:$THIRDPARTY_INSTALL_DIR/bin >> $THIRDPARTY_INSTALL_DIR/share/creatools_third_party_library_config.sh
-sudo echo export VTK_DIR=$THIRDPARTY_INSTALL_DIR/lib/vtk-5.6 >> $THIRDPARTY_INSTALL_DIR/share/creatools_third_party_library_config.sh
-sudo echo export ITK_DIR=$THIRDPARTY_INSTALL_DIR/lib/InsightToolkit >> $THIRDPARTY_INSTALL_DIR/share/creatools_third_party_library_config.sh
-sudo echo export GDCM_DIR=$THIRDPARTY_INSTALL_DIR/lib/gdcm >> $THIRDPARTY_INSTALL_DIR/share/creatools_third_party_library_config.sh
-sudo echo export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$GDCM_DIR >> $THIRDPARTY_INSTALL_DIR/share/creatools_third_party_library_config.sh
-sudo echo export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$ITK_DIR >> $THIRDPARTY_INSTALL_DIR/share/creatools_third_party_library_config.sh
-sudo echo export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$VTK_DIR >> $THIRDPARTY_INSTALL_DIR/share/creatools_third_party_library_config.sh
+sudo echo export PATH='$'PATH:$THIRDPARTY_INSTALL_DIR/bin >> $THIRDPARTY_INSTALL_DIR/share/creatools_third_party_library_config.sh
+sudo echo export VTK_DIR=$THIRDPARTY_INSTALL_DIR/lib/vtk-5.6 >> $THIRDPARTY_INSTALL_DIR/share/creatools_third_party_library_config.sh
+sudo echo export ITK_DIR=$THIRDPARTY_INSTALL_DIR/lib/InsightToolkit >> $THIRDPARTY_INSTALL_DIR/share/creatools_third_party_library_config.sh
+sudo echo export GDCM_DIR=$THIRDPARTY_INSTALL_DIR/lib/gdcm >> $THIRDPARTY_INSTALL_DIR/share/creatools_third_party_library_config.sh
+sudo echo export LD_LIBRARY_PATH='$'LD_LIBRARY_PATH:$GDCM_DIR >> $THIRDPARTY_INSTALL_DIR/share/creatools_third_party_library_config.sh
+sudo echo export LD_LIBRARY_PATH='$'LD_LIBRARY_PATH:$ITK_DIR >> $THIRDPARTY_INSTALL_DIR/share/creatools_third_party_library_config.sh
+sudo echo export LD_LIBRARY_PATH='$'LD_LIBRARY_PATH:$VTK_DIR >> $THIRDPARTY_INSTALL_DIR/share/creatools_third_party_library_config.sh