diff --git a/tutorials/incompressible/pisoFoam/les/motorBike/lesFiles/Allrun b/tutorials/incompressible/pisoFoam/les/motorBike/lesFiles/Allrun
index 769a0e506ba18cea6b216b0adb41ac5d9f46f529..97141c33eb851f2d653f9ef3a07bd7dec0c47d82 100755
--- a/tutorials/incompressible/pisoFoam/les/motorBike/lesFiles/Allrun
+++ b/tutorials/incompressible/pisoFoam/les/motorBike/lesFiles/Allrun
@@ -7,9 +7,9 @@
 cp ../lesFiles/fvS* ../lesFiles/controlDict system/
 cp ../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
 
 runParallel pisoFoam 8
 
diff --git a/tutorials/incompressible/pisoFoam/les/motorBike/motorBike/Allrun b/tutorials/incompressible/pisoFoam/les/motorBike/motorBike/Allrun
index 8f1c872311666ebb2ed5360fb8b038d1d915485b..deb3e65fbb4e185f42f7cc7ba4c0142f89ee2283 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 d188343788ec199f1530c8cd99b5984be978bac0..dfd8c4d523c725d31cde1b7b4b2db851e1732cb1 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 9ae8bde9af81511cc8f251bf8dd45980761581f0..d8e20e4da2efe32f6c3ef5bd42fb095d53a403ef 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 9b8b728f5a4dc7aff8f76cf1b9f37e70214239c4..c4b1d6e6ad8b86636730e075a32fcc63f7aca15f 100755
--- a/wmake/wcleanAll
+++ b/wmake/wcleanAll
@@ -69,7 +69,7 @@ rm -rf platforms/*
 
 echo "Cleaning Make sub-directories"
 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 directories"
diff --git a/wmake/wcleanMachine b/wmake/wcleanMachine
index 1079b734a3f86b2ab03e8f04e3bd464bc968955d..ed67c87fa64cc3dec17efdc45a25169297597755 100755
--- a/wmake/wcleanMachine
+++ b/wmake/wcleanMachine
@@ -3,7 +3,7 @@
 # =========                 |
 # \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
 #  \\    /   O peration     |
-#   \\  /    A nd           | Copyright (C) 2011-2014 OpenFOAM Foundation
+#   \\  /    A nd           | Copyright (C) 2011-2015 OpenFOAM Foundation
 #    \\/     M anipulation  |
 #-------------------------------------------------------------------------------
 # License
@@ -79,7 +79,7 @@ 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