diff --git a/bin/foamPackMake b/bin/foamPackMake
index d6767a69..7f5cd59c 100755
--- a/bin/foamPackMake
+++ b/bin/foamPackMake
@@ -150,7 +150,7 @@ esac
 trap 'rm -f $packFile 2>/dev/null' INT
 
 find -H $packDir -depth -name Make -type d -print | \
-    xargs -I find '{}' -depth -name "$archOptions*" -type d -print | \
+    xargs -I {} find '{}' -depth -name "$archOptions*" -type d -print | \
     tar $tarOpt $packFile -T -
 
 if [ $? -eq 0 ]
diff --git a/bin/touchdep b/bin/touchdep
index 7039ff6a..e5397408 100755
--- a/bin/touchdep
+++ b/bin/touchdep
@@ -87,8 +87,8 @@ do
         then
             echo "touching all .dep files under Make/$WM_OPTIONS* : $i"
             find $i -depth -name Make -type d -print | \
-                xargs -I find '{}' -depth -name "$WM_OPTIONS*" -type d -print | \
-                xargs -I find '{}' -name '*.dep' -type f -print | \
+                xargs -I {} find '{}' -depth -name "$WM_OPTIONS*" -type d -print | \
+                xargs -I {} find '{}' -name '*.dep' -type f -print | \
                 xargs -t touch
         else
             echo "touching all .dep files: $i"
diff --git a/bin/toucho b/bin/toucho
index 7aaa5a26..120f7138 100755
--- a/bin/toucho
+++ b/bin/toucho
@@ -83,8 +83,8 @@ do
         then
             echo "touching all .o files under Make/$WM_OPTIONS* : $i"
             find $i -depth -name Make -type d -print | \
-                xargs -I find '{}' -depth -name "$WM_OPTIONS*" -type d -print | \
-                xargs -I find '{}' -name '*.o' -type f -print | \
+                xargs -I {} find '{}' -depth -name "$WM_OPTIONS*" -type d -print | \
+                xargs -I {} find '{}' -name '*.o' -type f -print | \
                 xargs -t touch
         else
             echo "touching all .o files: $i"
diff --git a/tutorials/incompressible/pisoFoam/les/motorBike/lesFiles/Allrun b/tutorials/incompressible/pisoFoam/les/motorBike/lesFiles/Allrun
index 382fa3d5..b7170de6 100755
--- a/tutorials/incompressible/pisoFoam/les/motorBike/lesFiles/Allrun
+++ b/tutorials/incompressible/pisoFoam/les/motorBike/lesFiles/Allrun
@@ -8,13 +8,13 @@
 cp ../lesFiles/fvS* ../lesFiles/controlDict system/
 cp ../lesFiles/LESProperties ../lesFiles/turbulenceProperties constant/
 
-ls -d processor* | xargs -I rm -rf ./{}/0 $1
-ls -d processor* | xargs -I mv ./{}/500 ./{}/0 $1
-ls -d processor* | xargs -I rm -rf ./{}/0/uniform $1
+ls -d processor* | xargs -I {} rm -rf ./{}/0 $1
+ls -d processor* | xargs -I {} mv ./{}/500 ./{}/0 $1
+ls -d processor* | xargs -I {} rm -rf ./{}/0/uniform $1
 
-ls -d processor* | xargs -I cp ../lesFiles/LESProperties ./{}/constant/ $1
-ls -d processor* | xargs -I cp ../lesFiles/turbulenceProperties ./{}/constant/ $1
-ls -d processor* | xargs -I cp ../lesFiles/nuSgs ./{}/0/ $1
+ls -d processor* | xargs -I {} cp ../lesFiles/LESProperties ./{}/constant/ $1
+ls -d processor* | xargs -I {} cp ../lesFiles/turbulenceProperties ./{}/constant/ $1
+ls -d processor* | xargs -I {} cp ../lesFiles/nuSgs ./{}/0/ $1
 
 
 runParallel pisoFoam 8
diff --git a/tutorials/incompressible/pisoFoam/les/motorBike/motorBike/Allrun b/tutorials/incompressible/pisoFoam/les/motorBike/motorBike/Allrun
index 381f9c90..893aaac5 100755
--- a/tutorials/incompressible/pisoFoam/les/motorBike/motorBike/Allrun
+++ b/tutorials/incompressible/pisoFoam/les/motorBike/motorBike/Allrun
@@ -19,7 +19,7 @@ runParallel snappyHexMesh 8 -overwrite -parallel
 
 find . -type f -iname "*level*" -exec rm {} \;
 
-ls -d processor* | xargs -I cp -r 0.org ./{}/0 $1
+ls -d processor* | xargs -I {} cp -r 0.org ./{}/0 $1
 
 runParallel renumberMesh 8 -overwrite
 
diff --git a/tutorials/incompressible/simpleFoam/motorBike/Allrun b/tutorials/incompressible/simpleFoam/motorBike/Allrun
index db60fbf4..74d70ca7 100755
--- a/tutorials/incompressible/simpleFoam/motorBike/Allrun
+++ b/tutorials/incompressible/simpleFoam/motorBike/Allrun
@@ -17,8 +17,8 @@ runParallel snappyHexMesh 6 -overwrite
 #cp -r 0.org 0 > /dev/null 2>&1
 
 #- For parallel running
-ls -d processor* | xargs -I rm -rf ./{}/0
-ls -d processor* | xargs -I cp -r 0.org ./{}/0
+ls -d processor* | xargs -I {} rm -rf ./{}/0
+ls -d processor* | xargs -I {} cp -r 0.org ./{}/0
 
 runParallel patchSummary 6
 runParallel potentialFoam 6 -noFunctionObjects
diff --git a/tutorials/incompressible/simpleFoam/turbineSiting/Allrun b/tutorials/incompressible/simpleFoam/turbineSiting/Allrun
index 4b407535..12c7d5fb 100755
--- a/tutorials/incompressible/simpleFoam/turbineSiting/Allrun
+++ b/tutorials/incompressible/simpleFoam/turbineSiting/Allrun
@@ -16,7 +16,7 @@ runParallel snappyHexMesh 4 -overwrite
 
 find . -type f -iname "*level*" -exec rm {} \;
 
-ls -d processor* | xargs -I cp -r 0.org ./{}/0 $1
+ls -d processor* | xargs -I {} cp -r 0.org ./{}/0 $1
 
 runParallel topoSet 4
 runParallel `getApplication` 4
diff --git a/wmake/wcleanAll b/wmake/wcleanAll
index 20873ac7..a58b6a01 100755
--- a/wmake/wcleanAll
+++ b/wmake/wcleanAll
@@ -66,7 +66,7 @@ find . -name '*.dep' -exec rm {} \;
 
 echo "Cleaning Make subdirectories"
 find . -depth \( -name Make -o -name "Make.[A-Za-z]*" \) -type d -print | \
-    xargs -I find '{}' -mindepth 1 -maxdepth 1 -type d -print | \
+    xargs -I {} find '{}' -mindepth 1 -maxdepth 1 -type d -print | \
     xargs rm -rf
 
 echo "Removing lnInclude and intermediate directories"
diff --git a/wmake/wcleanMachine b/wmake/wcleanMachine
index d0e15208..6971669c 100755
--- a/wmake/wcleanMachine
+++ b/wmake/wcleanMachine
@@ -77,7 +77,7 @@ do
     echo "Cleaning machine type: $machType"
 
     find . -depth \( -name Make -o -name "Make.[A-Za-z]*" \) -type d -print | \
-        xargs -I find '{}' -mindepth 1 -maxdepth 1 \
+        xargs -I {} find '{}' -mindepth 1 -maxdepth 1 \
               \( -type d -name "*$machType" -o -name "*$machType$WM_MPLIB" \) \
               -print | xargs rm -rf