--- a/groupbyBed.xml	Wed Sep 14 17:29:56 2016 -0400
+++ b/groupbyBed.xml	Mon Oct 17 10:13:20 2016 -0400
@@ -8,17 +8,17 @@
     <command>
 <![CDATA[
         bedtools groupby
+        -i "${inputA}"
+        -g '$group'
         -c "${cols}"
-        -g $group
         -o $operation
-        -i "${inputA}"
         > "${output}"
 ]]>
     </command>
     <inputs>
         <param format="bed" name="inputA" type="data" label="BED file"/>
         <expand macro="choose_columns" />
-        <param name="group" type="text" value="1,2,3" 
+        <param name="group" type="text" value="1,2,3"
             label="Specifies which column(s) (1-based) should be used to group the input"
             help="Columns may be comma-separated with each column must be explicitly listed. Or, ranges (e.g. 1-4) are also allowed. (-g)">
             <sanitizer invalid_char="">