diff -r 1997cfcd6334 -r 1b08b8ac13fd testing4/postfix_test.sh
--- a/testing4/postfix_test.sh	Sun Dec 16 21:43:14 2018 +0000
+++ b/testing4/postfix_test.sh	Tue Dec 18 23:31:45 2018 +0000
@@ -65,10 +65,10 @@
 
 if [ $tsts1 -eq 0 ]
 then
-  echo -e " syard(split(\"3 + 4 * ( 2 - 1 )\")) == List(\"3\", \"4\", \"2\", \"1\", \"-\", \"*\", \"+\")" >> $out
+  echo -e " syard(split(\"3 + 4 * ( 2 - 1 )\")) == List(\"3\", \"4\", \"2\", \"1\", \"-\", \"\*\", \"+\")" >> $out
   echo -e " syard(split(\"( ( ( 3 ) ) + ( ( 4 + ( 5 ) ) ) )\")) == List(\"3\", \"4\", \"5\", \"+\", \"+\")" >> $out
   echo -e " syard(split(\"5 + 7 / 2\")) == List(\"5\", \"7\", \"2\", \"/\", \"+\")" >> $out
-  echo -e " syard(split(\"5 * 7 / 2\")) == List(\"5\", \"7\", \"*\", \"2\", \"/\")" >> $out
+  echo -e " syard(split(\"5 * 7 / 2\")) == List(\"5\", \"7\", \"\*\", \"2\", \"/\")" >> $out
   
   if (scala_assert "postfix.scala" "postfix_test7.scala")
   then
@@ -136,12 +136,12 @@
 
 if [ $tsts1 -eq 0 ]
 then
-  echo -e " syard(split(\"3 + 4 * ( 2 - 1 )\")) == List(\"3\", \"4\", \"2\", \"1\", \"-\", \"*\", \"+\")" >> $out
+  echo -e " syard(split(\"3 + 4 * ( 2 - 1 )\")) == List(\"3\", \"4\", \"2\", \"1\", \"-\", \"\*\", \"+\")" >> $out
   echo -e " syard(split(\"( ( ( 3 ) ) + ( ( 4 + ( 5 ) ) ) )\")) == List(\"3\", \"4\", \"5\", \"+\", \"+\")" >> $out
   echo -e " syard(split(\"5 + 7 / 2\")) == List(\"5\", \"7\", \"2\", \"/\", \"+\")" >> $out
-  echo -e " syard(split(\"5 * 7 / 2\")) == List(\"5\", \"7\", \"*\", \"2\", \"/\")" >> $out
+  echo -e " syard(split(\"5 * 7 / 2\")) == List(\"5\", \"7\", \"\*\", \"2\", \"/\")" >> $out
   echo -e " syard(split(\"3 + 4 * 8 / ( 5 - 1 ) ^ 2 ^ 3\")) == " >> $out
-  echo -e "         List(\"3\", \"4\", \"8\", \"*\", \"5\", \"1\", \"-\", \"2\", \"3\", \"^\", \"^\", \"/\", \"+\")" >> $out
+  echo -e "         List(\"3\", \"4\", \"8\", \"\*\", \"5\", \"1\", \"-\", \"2\", \"3\", \"^\", \"^\", \"/\", \"+\")" >> $out
   echo -e " " >> $out 
   echo -e " compute(syard(split(\"3 + 4 * ( 2 - 1 )\"))) == 7" >> $out
   echo -e " compute(syard(split(\"10 + 12 * 33\"))) == 406" >> $out