diff --git a/tutorials/Allclean b/tutorials/Allclean
index b8cf626ef3e55bc8a6be2783dcca34dac6287d92..aefce0c6f099132e81d93bcc63052e7844cc73e7 100755
--- a/tutorials/Allclean
+++ b/tutorials/Allclean
@@ -30,7 +30,7 @@
 #     
 #------------------------------------------------------------------------------
 
-. CleanFunctions
+. ./CleanFunctions
 
 echo "Cleaning backup files"
 find . -type f \( -name "*~" -o -name "*.bak" \) -exec rm {} \; 
diff --git a/tutorials/CleanFunctions b/tutorials/CleanFunctions
index dee6ac75fe6aca7cb80ffb69281751a9f6d4d9af..a5e9b7ebed4174d292d7bfc293d72b5ea236b8e5 100644
--- a/tutorials/CleanFunctions
+++ b/tutorials/CleanFunctions
@@ -54,7 +54,7 @@ cleanTimeDirectories ()
         rm -rf $1/${timeDir} > /dev/null 2>&1
         rm -rf $1/-${timeDir} > /dev/null 2>&1
         zeros=`printf %0${nZeros}d 0`
-        let nZeros=nZeros+1
+        nZeros=$(($nZeros + 1))
     done
     rm -rf $1/{[1-9]*,-[1-9]*,log,log.*,log-*,logSummary.*,.fxLock,*.xml,ParaView*,paraFoam*,*.foam} > /dev/null 2>&1
 }
diff --git a/tutorials/sonicFoam/Allclean b/tutorials/sonicFoam/Allclean
index c79a02160cd1cad44b8231c7d606b7668080c96e..598ab19eb5cb07bde88a7084ff27196f7ca94ab0 100755
--- a/tutorials/sonicFoam/Allclean
+++ b/tutorials/sonicFoam/Allclean
@@ -3,7 +3,6 @@
 currDir=`pwd`
 application=`basename $currDir`
 cases="forwardStep shockTube"
-utility=setShock
 
 tutorialPath=`dirname $0`/..
 . $tutorialPath/CleanFunctions
@@ -15,7 +14,6 @@ do
     then
         rm -rf $case/0
         cp -r $case/0.org $case/0
-        wclean $case/$utility
         cleanSamples $case
     fi
 done