Index: ../trunk-jpl/jenkins/jenkins.sh
===================================================================
--- ../trunk-jpl/jenkins/jenkins.sh	(revision 21025)
+++ ../trunk-jpl/jenkins/jenkins.sh	(revision 21026)
@@ -327,13 +327,17 @@
 			echo "Testing directory example: ${dir}"
 
 			# Greenland is missing step 8
+			if [ -z "$SED" ];
+			then
+				SED='sed'
+			fi
 			STEP_EIGHT="\n	disp('   Step 8: Plotting exercise');\n	md = loadmodel('.\/Models\/Greenland.HistoricTransient_200yr');\n	figure\n	surfmb=[]; for i=2:201; surfmb=[surfmb ...\n		md.results.TransientSolution(i).SmbMassBalance]; end\n	subplot(3,1,1); plot([1:200],mean(surfmb));\n	title('Mean Surface mass balance');\n	vel=[]; for i=2:201; vel=[vel md.results.TransientSolution(i).Vel]; end\n	subplot(3,1,2); plot([1:200],mean(vel));\n	title('Mean Velocity');\n	volume=[]; for i=2:201; volume=[volume md.results.TransientSolution(i).IceVolume]; end\n	subplot(3,1,3); plot([1:200],volume);\n	title('Ice Volume'); xlabel('years');"
 
 			if [ "${dir}" == "./Greenland" ];
 			then
 				cd ${dir}
 				sed -i.bak "s/if any(steps==8)/&${STEP_EIGHT}/" $FILE
-				sed -i.bak 's/steps=\[1\];/steps=\[1:8\];/' $FILE
+				$SED -i.bak 's/steps=\[1\];/steps=\[1:8\];/' $FILE
 				cat ./runme.m
 				cd ..
 			else