diff --git a/applications/utilities/mesh/advanced/collapseEdges/collapseEdges.C b/applications/utilities/mesh/advanced/collapseEdges/collapseEdges.C
index c729e1077d..20f5cffccd 100644
--- a/applications/utilities/mesh/advanced/collapseEdges/collapseEdges.C
+++ b/applications/utilities/mesh/advanced/collapseEdges/collapseEdges.C
@@ -312,7 +312,7 @@ label collapseHighAspectFaces
                 if (lengths[1] > edgeRatio*lengths[0])
                 {
                     edgeI = fEdges[lengths.indices()[0]];
-                }    
+                }
             }
 
 
@@ -456,6 +456,7 @@ label simplifyFaces
 int main(int argc, char *argv[])
 {
     argList::noParallel();
+    argList::validOptions.insert("overwrite", "");
     argList::validArgs.append("edge length [m]");
     argList::validArgs.append("merge angle (degrees)");
 
@@ -465,6 +466,7 @@ int main(int argc, char *argv[])
 
     scalar minLen(readScalar(IStringStream(args.additionalArgs()[0])()));
     scalar angle(readScalar(IStringStream(args.additionalArgs()[1])()));
+    bool overwrite = args.options().found("overwrite");
 
     scalar maxCos = Foam::cos(angle*180/mathematicalConstant::pi);
 
@@ -580,7 +582,10 @@ int main(int argc, char *argv[])
     if (meshChanged)
     {
         // Write resulting mesh
-        runTime++;
+        if (!overwrite)
+        {
+            runTime++;
+        }
 
         Info << "Writing collapsed mesh to time " << runTime.value() << endl;
 
diff --git a/applications/utilities/mesh/advanced/combinePatchFaces/combinePatchFaces.C b/applications/utilities/mesh/advanced/combinePatchFaces/combinePatchFaces.C
index 88e9664597..d2fce6db25 100644
--- a/applications/utilities/mesh/advanced/combinePatchFaces/combinePatchFaces.C
+++ b/applications/utilities/mesh/advanced/combinePatchFaces/combinePatchFaces.C
@@ -92,7 +92,7 @@ void checkSnapMesh
     scalar relMinVol(readScalar(snapDict.lookup("minVol")));
     const scalar minCellVol = min(mesh.cellVolumes());
     const scalar minPyrVol = relMinVol*minCellVol;
-    // Min area 
+    // Min area
     scalar minArea(readScalar(snapDict.lookup("minArea")));
 
     if (maxNonOrtho < 180.0-SMALL)
@@ -435,6 +435,7 @@ int main(int argc, char *argv[])
     argList::validArgs.append("feature angle [0..180]");
     argList::validOptions.insert("concaveAngle", "[0..180]");
     argList::validOptions.insert("snapMesh", "");
+    argList::validOptions.insert("overwrite", "");
 
 #   include "setRootCase.H"
 #   include "createTime.H"
@@ -457,6 +458,7 @@ int main(int argc, char *argv[])
     scalar concaveSin = Foam::sin(concaveAngle*mathematicalConstant::pi/180.0);
 
     bool snapMeshDict = args.options().found("snapMesh");
+    bool overwrite = args.options().found("overwrite");
 
     Info<< "Merging all faces of a cell" << nl
         << "    - which are on the same patch" << nl
@@ -468,7 +470,10 @@ int main(int argc, char *argv[])
         << "      (sin:" << concaveSin << ')' << nl
         << endl;
 
-    runTime++;
+    if (!overwrite)
+    {
+        runTime++;
+    }
 
     // Merge faces on same patch
     label nChanged = mergePatchFaces
diff --git a/applications/utilities/mesh/advanced/modifyMesh/modifyMesh.C b/applications/utilities/mesh/advanced/modifyMesh/modifyMesh.C
index 438febfb7c..e20ccda4b9 100644
--- a/applications/utilities/mesh/advanced/modifyMesh/modifyMesh.C
+++ b/applications/utilities/mesh/advanced/modifyMesh/modifyMesh.C
@@ -328,10 +328,14 @@ label findCell(const primitiveMesh& mesh, const point& nearPoint)
 
 int main(int argc, char *argv[])
 {
+    argList::validOptions.insert("overwrite", "");
+
 #   include "setRootCase.H"
 #   include "createTime.H"
 #   include "createPolyMesh.H"
 
+    bool overwrite = args.options().found("overwrite");
+
     Info<< "Reading modifyMeshDict\n" << endl;
 
     IOdictionary dict
@@ -366,7 +370,7 @@ int main(int argc, char *argv[])
 
     bool cellsToSplit = cellsToPyramidise.size() > 0;
 
-    //List<Tuple<pointField,point> > 
+    //List<Tuple<pointField,point> >
     //  cellsToCreate(dict.lookup("cellsToCreate"));
 
     Info<< "Read from " << dict.name() << nl
@@ -541,7 +545,10 @@ int main(int argc, char *argv[])
 
         cutter.updateMesh(morphMap());
 
-        runTime++;
+        if (!overwrite)
+        {
+            runTime++;
+        }
 
         // Write resulting mesh
         Info << "Writing modified mesh to time " << runTime.value() << endl;
@@ -572,7 +579,7 @@ int main(int argc, char *argv[])
         // Topo change container
         polyTopoChange meshMod(mesh);
 
-        // Insert 
+        // Insert
         cutter.setRefinement(meshMod);
 
         // Do changes
@@ -587,7 +594,10 @@ int main(int argc, char *argv[])
         //cutter.updateMesh(morphMap());
 
 
-        runTime++;
+        if (!overwrite)
+        {
+            runTime++;
+        }
 
         // Write resulting mesh
         Info << "Writing modified mesh to time " << runTime.value() << endl;
@@ -623,7 +633,10 @@ int main(int argc, char *argv[])
 
         cutter.updateMesh(morphMap());
 
-        runTime++;
+        if (!overwrite)
+        {
+            runTime++;
+        }
 
         // Write resulting mesh
         Info << "Writing modified mesh to time " << runTime.value() << endl;
diff --git a/applications/utilities/mesh/advanced/refineHexMesh/refineHexMesh.C b/applications/utilities/mesh/advanced/refineHexMesh/refineHexMesh.C
index 4bed4c059c..afa1ab6c6d 100644
--- a/applications/utilities/mesh/advanced/refineHexMesh/refineHexMesh.C
+++ b/applications/utilities/mesh/advanced/refineHexMesh/refineHexMesh.C
@@ -52,6 +52,7 @@ using namespace Foam;
 // Main program:
 int main(int argc, char *argv[])
 {
+    argList::validOptions.insert("overwrite", "");
     argList::validArgs.append("cellSet");
 #   include "setRootCase.H"
 #   include "createTime.H"
@@ -59,6 +60,7 @@ int main(int argc, char *argv[])
     pointMesh pMesh(mesh);
 
     word cellSetName(args.args()[1]);
+    bool overwrite = args.options().found("overwrite");
 
     Info<< "Reading cells to refine from cellSet " << cellSetName
         << nl << endl;
@@ -110,7 +112,7 @@ int main(int argc, char *argv[])
     // Read point fields
     PtrList<pointScalarField> psFlds;
     ReadFields(pMesh, objects, psFlds);
-    
+
     PtrList<pointVectorField> pvFlds;
     ReadFields(pMesh, objects, pvFlds);
 
@@ -149,7 +151,10 @@ int main(int argc, char *argv[])
     // Play refinement commands into mesh changer.
     meshCutter.setRefinement(newCellsToRefine, meshMod);
 
-    runTime++;
+    if (!overwrite)
+    {
+        runTime++;
+    }
 
     // Create mesh, return map from old to new mesh.
     autoPtr<mapPolyMesh> map = meshMod.changeMesh(mesh, false);
diff --git a/applications/utilities/mesh/advanced/refineWallLayer/refineWallLayer.C b/applications/utilities/mesh/advanced/refineWallLayer/refineWallLayer.C
index 7c5cf56bd8..00d9b57a00 100644
--- a/applications/utilities/mesh/advanced/refineWallLayer/refineWallLayer.C
+++ b/applications/utilities/mesh/advanced/refineWallLayer/refineWallLayer.C
@@ -50,6 +50,7 @@ int main(int argc, char *argv[])
     Foam::argList::validArgs.append("patchName");
     Foam::argList::validArgs.append("edgeWeight");
     Foam::argList::validOptions.insert("useSet", "cellSet");
+    Foam::argList::validOptions.insert("overwrite", "");
 
 #   include "setRootCase.H"
 #   include "createTime.H"
@@ -57,7 +58,8 @@ int main(int argc, char *argv[])
 
     word patchName(args.additionalArgs()[0]);
 
-    scalar weight(readScalar(IStringStream(args.additionalArgs()[1])()));    
+    scalar weight(readScalar(IStringStream(args.additionalArgs()[1])()));
+    bool overwrite = args.options().found("overwrite");
 
 
     label patchID = mesh.boundaryMesh().findPatchID(patchName);
@@ -212,7 +214,10 @@ int main(int argc, char *argv[])
     // Do all changes
     Info<< "Morphing ..." << endl;
 
-    runTime++;
+    if (!overwrite)
+    {
+        runTime++;
+    }
 
     autoPtr<mapPolyMesh> morphMap = meshMod.changeMesh(mesh, false);
 
diff --git a/applications/utilities/mesh/advanced/removeFaces/removeFaces.C b/applications/utilities/mesh/advanced/removeFaces/removeFaces.C
index ed6e4169a1..f773768e8b 100644
--- a/applications/utilities/mesh/advanced/removeFaces/removeFaces.C
+++ b/applications/utilities/mesh/advanced/removeFaces/removeFaces.C
@@ -48,12 +48,15 @@ using namespace Foam;
 
 int main(int argc, char *argv[])
 {
+    Foam::argList::validOptions.insert("overwrite", "");
     Foam::argList::validArgs.append("faceSet");
 
 #   include "setRootCase.H"
 #   include "createTime.H"
 #   include "createMesh.H"
 
+    bool overwrite = args.options().found("overwrite");
+
     word setName(args.additionalArgs()[0]);
 
     // Read faces
@@ -159,7 +162,10 @@ int main(int argc, char *argv[])
     // Update numbering of cells/vertices.
     faceRemover.updateMesh(morphMap);
 
-    runTime++;
+    if (!overwrite)
+    {
+        runTime++;
+    }
 
     // Take over refinement levels and write to new time directory.
     Pout<< "Writing mesh to time " << runTime.timeName() << endl;
diff --git a/applications/utilities/mesh/advanced/splitCells/splitCells.C b/applications/utilities/mesh/advanced/splitCells/splitCells.C
index b9e73715b4..b2c26700ee 100644
--- a/applications/utilities/mesh/advanced/splitCells/splitCells.C
+++ b/applications/utilities/mesh/advanced/splitCells/splitCells.C
@@ -527,6 +527,7 @@ int main(int argc, char *argv[])
     argList::validOptions.insert("set", "cellSet name");
     argList::validOptions.insert("geometry", "");
     argList::validOptions.insert("tol", "edge snap tolerance");
+    argList::validOptions.insert("overwrite", "");
     argList::validArgs.append("edge angle [0..360]");
 
 #   include "setRootCase.H"
@@ -541,6 +542,7 @@ int main(int argc, char *argv[])
 
     bool readSet = args.options().found("set");
     bool geometry = args.options().found("geometry");
+    bool overwrite = args.options().found("overwrite");
 
     scalar edgeTol = 0.2;
 
@@ -574,7 +576,7 @@ int main(int argc, char *argv[])
     // Cell circumference cutter
     geomCellLooper cellCutter(mesh);
     // Snap all edge cuts close to endpoints to vertices.
-    geomCellLooper::setSnapTol(edgeTol);    
+    geomCellLooper::setSnapTol(edgeTol);
 
     // Candidate cells to cut
     cellSet cellsToCut(mesh, "cellsToCut", mesh.nCells()/100);
@@ -612,7 +614,7 @@ int main(int argc, char *argv[])
             minCos,
             minSin,
             cellsToCut,
-            
+
             cutCells,
             cellLoops,
             cellEdgeWeights
@@ -669,7 +671,10 @@ int main(int argc, char *argv[])
         // Do all changes
         Info<< "Morphing ..." << endl;
 
-        runTime++;
+        if (!overwrite)
+        {
+            runTime++;
+        }
 
         autoPtr<mapPolyMesh> morphMap = meshMod.changeMesh(mesh, false);
 
diff --git a/applications/utilities/mesh/conversion/netgenNeutralToFoam/netgenNeutralToFoam.C b/applications/utilities/mesh/conversion/netgenNeutralToFoam/netgenNeutralToFoam.C
index 585740e9d0..a0ebfa38a0 100644
--- a/applications/utilities/mesh/conversion/netgenNeutralToFoam/netgenNeutralToFoam.C
+++ b/applications/utilities/mesh/conversion/netgenNeutralToFoam/netgenNeutralToFoam.C
@@ -89,11 +89,13 @@ using namespace Foam;
 int main(int argc, char *argv[])
 {
     argList::validArgs.append("Neutral file");
+    argList::validOptions.insert("overwrite", "");
 
 #   include "setRootCase.H"
 #   include "createTime.H"
 
     fileName neuFile(args.additionalArgs()[0]);
+    bool overwrite = args.options().found("overwrite");
 
 
     IFstream str(neuFile);
@@ -298,7 +300,10 @@ int main(int argc, char *argv[])
     }
 
 
-    runTime++;
+    if (!overwrite)
+    {
+        runTime++;
+    }
 
     polyMesh mesh
     (
@@ -321,7 +326,7 @@ int main(int argc, char *argv[])
     Info<< "Writing mesh to " << runTime.constant() << endl << endl;
 
     mesh.write();
-    
+
 
     Info<< "End\n" << endl;
 
diff --git a/applications/utilities/mesh/conversion/polyDualMesh/polyDualMeshApp.C b/applications/utilities/mesh/conversion/polyDualMesh/polyDualMeshApp.C
index e4165d30ba..a0fcbfae2c 100644
--- a/applications/utilities/mesh/conversion/polyDualMesh/polyDualMeshApp.C
+++ b/applications/utilities/mesh/conversion/polyDualMesh/polyDualMeshApp.C
@@ -43,12 +43,14 @@ int main(int argc, char *argv[])
 {
     argList::noParallel();
     argList::validArgs.append("feature angle[0-180]");
+    argList::validOptions.insert("overwrite", "");
 
 #   include "setRootCase.H"
 #   include "createTime.H"
 #   include "createPolyMesh.H"
 
     scalar featureAngle(readScalar(IStringStream(args.additionalArgs()[0])()));
+    bool overwrite = args.options().found("overwrite");
 
     scalar minCos = Foam::cos(featureAngle * mathematicalConstant::pi/180.0);
 
@@ -58,7 +60,10 @@ int main(int argc, char *argv[])
 
     polyDualMesh dualMesh(mesh, minCos);
 
-    runTime++;
+    if (!overwrite)
+    {
+        runTime++;
+    }
 
     Pout<< "Writing dualMesh to " << runTime.timeName() << endl;
 
diff --git a/applications/utilities/mesh/conversion/tetgenToFoam/tetgenToFoam.C b/applications/utilities/mesh/conversion/tetgenToFoam/tetgenToFoam.C
index 9155c5f563..c1ab9a9f11 100644
--- a/applications/utilities/mesh/conversion/tetgenToFoam/tetgenToFoam.C
+++ b/applications/utilities/mesh/conversion/tetgenToFoam/tetgenToFoam.C
@@ -75,12 +75,14 @@ int main(int argc, char *argv[])
 {
     argList::validArgs.append("file prefix");
     argList::validOptions.insert("noFaceFile", "");
+    argList::validOptions.insert("overwrite", "");
 
 #   include "setRootCase.H"
 #   include "createTime.H"
 
 
     bool readFaceFile = !args.options().found("noFaceFile");
+    bool overwrite = args.options().found("overwrite");
 
     fileName prefix(args.additionalArgs()[0]);
 
@@ -244,7 +246,7 @@ int main(int argc, char *argv[])
             << "Element attributes (third elemenent in .ele header)"
             << " not used" << endl;
     }
- 
+
 
 
     const cellModel& tet = *(cellModeller::lookup("tet"));
@@ -438,7 +440,7 @@ int main(int argc, char *argv[])
     word defaultFacesType = polyPatch::typeName;
     wordList patchPhysicalTypes(nPatches, polyPatch::typeName);
 
-    
+
     if (readFaceFile)
     {
         // Sort boundaryFaces by patch using boundaryPatch.
@@ -464,7 +466,10 @@ int main(int argc, char *argv[])
         Info<< endl;
     }
 
-    runTime++;
+    if (!overwrite)
+    {
+        runTime++;
+    }
 
     polyMesh mesh
     (
@@ -487,7 +492,7 @@ int main(int argc, char *argv[])
     Info<< "Writing mesh to " << runTime.constant() << endl << endl;
 
     mesh.write();
-    
+
 
     Info<< "End\n" << endl;
 
diff --git a/applications/utilities/mesh/generation/extrude2DMesh/doExtrude2DMesh.C b/applications/utilities/mesh/generation/extrude2DMesh/doExtrude2DMesh.C
index beb5d301a5..c5f78468c3 100644
--- a/applications/utilities/mesh/generation/extrude2DMesh/doExtrude2DMesh.C
+++ b/applications/utilities/mesh/generation/extrude2DMesh/doExtrude2DMesh.C
@@ -58,11 +58,13 @@ using namespace Foam;
 int main(int argc, char *argv[])
 {
     argList::validArgs.append("thickness");
+    argList::validOptions.insert("overwrite", "");
 #   include "setRootCase.H"
 #   include "createTime.H"
 #   include "createPolyMesh.H"
 
     scalar thickness(readScalar(IStringStream(args.additionalArgs()[0])()));
+    bool overwrite = args.options().found("overwrite");
 
 
     // Check that mesh is 2D
@@ -164,7 +166,7 @@ int main(int argc, char *argv[])
     // Insert changes into meshMod
     extruder.setRefinement
     (
-        extrudeDir, 
+        extrudeDir,
         thickness,
         frontPatchI,
         meshMod
@@ -175,7 +177,10 @@ int main(int argc, char *argv[])
 
     mesh.updateMesh(morphMap);
 
-    runTime++;
+    if (!overwrite)
+    {
+        runTime++;
+    }
 
     // Take over refinement levels and write to new time directory.
     Pout<< "Writing extruded mesh to time " << runTime.timeName() << nl
diff --git a/applications/utilities/mesh/manipulation/attachMesh/attachMesh.C b/applications/utilities/mesh/manipulation/attachMesh/attachMesh.C
index 246fd22258..0ed68d518c 100644
--- a/applications/utilities/mesh/manipulation/attachMesh/attachMesh.C
+++ b/applications/utilities/mesh/manipulation/attachMesh/attachMesh.C
@@ -42,12 +42,18 @@ using namespace Foam;
 int main(int argc, char *argv[])
 {
     argList::noParallel();
-#   include "setRootCase.H"
+    argList::validOptions.insert("overwrite", "");
 
+#   include "setRootCase.H"
 #   include "createTime.H"
 #   include "createPolyMesh.H"
 
-    runTime++;
+    bool overwrite = args.options().found("overwrite");
+
+    if (!overwrite)
+    {
+        runTime++;
+    }
 
     Info<< "Time = " << runTime.timeName() << nl
         << "Attaching sliding interface" << endl;
diff --git a/applications/utilities/mesh/manipulation/autoPatch/autoPatch.C b/applications/utilities/mesh/manipulation/autoPatch/autoPatch.C
index fb12cfd6fe..a705537d07 100644
--- a/applications/utilities/mesh/manipulation/autoPatch/autoPatch.C
+++ b/applications/utilities/mesh/manipulation/autoPatch/autoPatch.C
@@ -71,6 +71,7 @@ int main(int argc, char *argv[])
 {
     argList::noParallel();
     argList::validArgs.append("feature angle[0-180]");
+    argList::validOptions.insert("overwrite", "");
 
 #   include "setRootCase.H"
 #   include "createTime.H"
@@ -88,6 +89,7 @@ int main(int argc, char *argv[])
     boundaryMesh bMesh;
 
     scalar featureAngle(readScalar(IStringStream(args.additionalArgs()[0])()));
+    bool overwrite = args.options().found("overwrite");
 
     scalar minCos = Foam::cos(featureAngle * mathematicalConstant::pi/180.0);
 
@@ -106,7 +108,7 @@ int main(int argc, char *argv[])
     collectFeatureEdges(bMesh, markedEdges);
 
 
-  
+
     // (new) patch ID for every face in mesh.
     labelList patchIDs(bMesh.mesh().size(), -1);
 
@@ -209,15 +211,18 @@ int main(int argc, char *argv[])
             newPatchI,
             mesh.boundaryMesh()
         ).ptr();
-        
+
         newPatchI++;
     }
 
-    runTime++;
+    if (!overwrite)
+    {
+        runTime++;
+    }
 
 
     // Change patches
-    repatchPolyTopoChanger polyMeshRepatcher(mesh);    
+    repatchPolyTopoChanger polyMeshRepatcher(mesh);
     polyMeshRepatcher.changePatches(newPatchPtrList);
 
 
diff --git a/applications/utilities/mesh/manipulation/createBaffles/createBaffles.C b/applications/utilities/mesh/manipulation/createBaffles/createBaffles.C
index cec90d905c..55e126a5ca 100644
--- a/applications/utilities/mesh/manipulation/createBaffles/createBaffles.C
+++ b/applications/utilities/mesh/manipulation/createBaffles/createBaffles.C
@@ -54,6 +54,7 @@ int main(int argc, char *argv[])
 {
     argList::validArgs.append("set");
     argList::validArgs.append("patch");
+    argList::validOptions.insert("overwrite", "");
 
 #   include "setRootCase.H"
 #   include "createTime.H"
@@ -81,6 +82,8 @@ int main(int argc, char *argv[])
             << "Cannot find patch " << patchName << exit(FatalError);
     }
 
+    bool overwrite = args.options().found("overwrite");
+
     // Read objects in time directory
     IOobjectList objects(mesh, runTime.timeName());
 
@@ -226,7 +229,10 @@ int main(int argc, char *argv[])
     Pout<< "Converted locally " << nBaffled
         << " faces into boundary faces on patch " << patchName << nl << endl;
 
-    runTime++;
+    if (!overwrite)
+    {
+        runTime++;
+    }
 
     // Change the mesh. Change points directly (no inflation).
     autoPtr<mapPolyMesh> map = meshMod.changeMesh(mesh, false);
diff --git a/applications/utilities/mesh/manipulation/createPatch/createPatch.C b/applications/utilities/mesh/manipulation/createPatch/createPatch.C
index e5c01cf2ff..3eb2341c38 100644
--- a/applications/utilities/mesh/manipulation/createPatch/createPatch.C
+++ b/applications/utilities/mesh/manipulation/createPatch/createPatch.C
@@ -154,11 +154,13 @@ void filterPatches(polyMesh& mesh)
 int main(int argc, char *argv[])
 {
     argList::noParallel();
+    argList::validOptions.insert("overwrite", "");
 
 #   include "setRootCase.H"
 #   include "createTime.H"
 #   include "createPolyMesh.H"
 
+    bool overwrite = args.options().found("overwrite");
 
     Info<< "Reading createPatchDict\n" << endl;
 
@@ -355,7 +357,10 @@ int main(int argc, char *argv[])
     // Set the precision of the points data to 10
     IOstream::defaultPrecision(10);
 
-    runTime++;
+    if (!overwrite)
+    {
+        runTime++;
+    }
 
     // Write resulting mesh
     Info<< "Writing repatched mesh to " << runTime.timeName() << endl;
diff --git a/applications/utilities/mesh/manipulation/mergeOrSplitBaffles/mergeOrSplitBaffles.C b/applications/utilities/mesh/manipulation/mergeOrSplitBaffles/mergeOrSplitBaffles.C
index f913664664..07bc16c42b 100644
--- a/applications/utilities/mesh/manipulation/mergeOrSplitBaffles/mergeOrSplitBaffles.C
+++ b/applications/utilities/mesh/manipulation/mergeOrSplitBaffles/mergeOrSplitBaffles.C
@@ -251,11 +251,13 @@ labelList getAllNonManifoldPoints
 int main(int argc, char *argv[])
 {
     argList::validOptions.insert("split", "");
+    argList::validOptions.insert("overwrite", "");
 #   include "setRootCase.H"
 #   include "createTime.H"
 #   include "createMesh.H"
 
     bool split = args.options().found("split");
+    bool overwrite = args.options().found("overwrite");
 
     // Collect all boundary faces
     labelList boundaryFaces(mesh.nFaces() - mesh.nInternalFaces());
@@ -402,7 +404,10 @@ int main(int argc, char *argv[])
         insertDuplicateMerge(mesh, duplicates, meshMod);
     }
 
-    runTime++;
+    if (!overwrite)
+    {
+        runTime++;
+    }
 
     // Change the mesh. No inflation.
     autoPtr<mapPolyMesh> map = meshMod.changeMesh(mesh, false);
diff --git a/applications/utilities/mesh/manipulation/refineMesh/refineMesh.C b/applications/utilities/mesh/manipulation/refineMesh/refineMesh.C
index 52b48eb77f..8f048c8621 100644
--- a/applications/utilities/mesh/manipulation/refineMesh/refineMesh.C
+++ b/applications/utilities/mesh/manipulation/refineMesh/refineMesh.C
@@ -294,6 +294,7 @@ label twoDNess(const polyMesh& mesh)
 int main(int argc, char *argv[])
 {
     Foam::argList::validOptions.insert("dict", "");
+    Foam::argList::validOptions.insert("overwrite", "");
 
 #   include "setRootCase.H"
 #   include "createTime.H"
@@ -307,6 +308,7 @@ int main(int argc, char *argv[])
     //
 
     bool readDict = args.options().found("dict");
+    bool overwrite = args.options().found("overwrite");
 
     // List of cells to refine
     labelList refCells;
@@ -413,7 +415,10 @@ int main(int argc, char *argv[])
 
     string oldTimeName(runTime.timeName());
 
-    runTime++;
+    if (!overwrite)
+    {
+        runTime++;
+    }
 
 
     // Multi-directional refinement (does multiple iterations)
@@ -431,7 +436,7 @@ int main(int argc, char *argv[])
 
     // Create cellSet with added cells for easy inspection
     cellSet newCells(mesh, "refinedCells", refCells.size());
-    
+
     forAll(oldToNew, oldCellI)
     {
         const labelList& added = oldToNew[oldCellI];
@@ -445,7 +450,7 @@ int main(int argc, char *argv[])
     Pout<< "Writing refined cells (" << newCells.size() << ") to cellSet "
         << newCells.instance()/newCells.local()/newCells.name()
         << endl << endl;
-    
+
     newCells.write();
 
 
@@ -473,7 +478,7 @@ int main(int argc, char *argv[])
       + runTime.timeName()
       + " to cells in mesh at "
       + oldTimeName;
-        
+
 
     forAll(oldToNew, oldCellI)
     {
@@ -500,7 +505,7 @@ int main(int argc, char *argv[])
 
 
     // Some statistics.
-    
+
     printEdgeStats(mesh);
 
     Info<< "End\n" << endl;
diff --git a/applications/utilities/mesh/manipulation/renumberMesh/renumberMesh.C b/applications/utilities/mesh/manipulation/renumberMesh/renumberMesh.C
index 1547318ac5..9a39e09091 100644
--- a/applications/utilities/mesh/manipulation/renumberMesh/renumberMesh.C
+++ b/applications/utilities/mesh/manipulation/renumberMesh/renumberMesh.C
@@ -228,7 +228,7 @@ labelList regionFaceOrder
 
             oldToNewFace[sortKey.indices()[i]] = newFaceI++;
         }
-    } 
+    }
 
     // Leave patch faces intact.
     for (label faceI = newFaceI; faceI < mesh.nFaces(); faceI++)
@@ -368,7 +368,8 @@ int main(int argc, char *argv[])
     argList::validOptions.insert("blockOrder", "");
     argList::validOptions.insert("orderPoints", "");
     argList::validOptions.insert("writeMaps", "");
-    
+    argList::validOptions.insert("overwrite", "");
+
 #   include "addTimeOptions.H"
 
 #   include "setRootCase.H"
@@ -411,6 +412,7 @@ int main(int argc, char *argv[])
             << endl;
     }
 
+    bool overwrite = args.options().found("overwrite");
 
     label band = getBand(mesh.faceOwner(), mesh.faceNeighbour());
 
@@ -503,7 +505,7 @@ int main(int argc, char *argv[])
 
             forAll(cellToRegion, cellI)
             {
-               cellDist[cellI] = cellToRegion[cellI]; 
+               cellDist[cellI] = cellToRegion[cellI];
             }
 
             cellDist.write();
@@ -528,7 +530,10 @@ int main(int argc, char *argv[])
             )
         );
 
-        runTime++;
+        if (!overwrite)
+        {
+            runTime++;
+        }
 
         // Change the mesh.
         map = reorderMesh(mesh, cellOrder, faceOrder);
@@ -539,7 +544,10 @@ int main(int argc, char *argv[])
 
         polyTopoChange meshMod(mesh);
 
-        runTime++;
+        if (!overwrite)
+        {
+            runTime++;
+        }
 
         // Change the mesh.
         map = meshMod.changeMesh
diff --git a/applications/utilities/mesh/manipulation/splitMesh/splitMesh.C b/applications/utilities/mesh/manipulation/splitMesh/splitMesh.C
index 973b2adab9..3845139200 100644
--- a/applications/utilities/mesh/manipulation/splitMesh/splitMesh.C
+++ b/applications/utilities/mesh/manipulation/splitMesh/splitMesh.C
@@ -118,6 +118,7 @@ int main(int argc, char *argv[])
     Foam::argList::validArgs.append("faceSet");
     Foam::argList::validArgs.append("masterPatch");
     Foam::argList::validArgs.append("slavePatch");
+    Foam::argList::validOptions.insert("overwrite", "");
 
 #   include "setRootCase.H"
 #   include "createTime.H"
@@ -126,6 +127,7 @@ int main(int argc, char *argv[])
     word setName(args.additionalArgs()[0]);
     word masterPatch(args.additionalArgs()[1]);
     word slavePatch(args.additionalArgs()[2]);
+    bool overwrite = args.options().found("overwrite");
 
     // List of faces to split
     faceSet facesSet(mesh, setName);
@@ -252,7 +254,10 @@ int main(int argc, char *argv[])
     Info<< nl << "Constructed topologyModifier:" << endl;
     splitter[0].writeDict(Info);
 
-    runTime++;
+    if (!overwrite)
+    {
+        runTime++;
+    }
 
     splitter.attach();
 
diff --git a/applications/utilities/mesh/manipulation/splitMeshRegions/splitMeshRegions.C b/applications/utilities/mesh/manipulation/splitMeshRegions/splitMeshRegions.C
index 5694b190b4..ec841685ca 100644
--- a/applications/utilities/mesh/manipulation/splitMeshRegions/splitMeshRegions.C
+++ b/applications/utilities/mesh/manipulation/splitMeshRegions/splitMeshRegions.C
@@ -720,7 +720,7 @@ autoPtr<mapPolyMesh> createRegionMesh
             {
                 exposedPatchIDs[i] = interfaceToPatch[interface]+1;
             }
-        }                    
+        }
     }
 
     // Remove faces
@@ -1118,6 +1118,7 @@ int main(int argc, char *argv[])
     argList::validOptions.insert("makeCellZones", "");
     argList::validOptions.insert("largestOnly", "");
     argList::validOptions.insert("insidePoint", "point");
+    argList::validOptions.insert("overwrite", "");
 
 #   include "setRootCase.H"
 #   include "createTime.H"
@@ -1134,6 +1135,7 @@ int main(int argc, char *argv[])
     bool largestOnly = args.options().found("largestOnly");
     bool insidePoint = args.options().found("insidePoint");
     bool useCellZones = args.options().found("cellZones");
+    bool overwrite = args.options().found("overwrite");
 
     if (insidePoint && largestOnly)
     {
@@ -1469,7 +1471,11 @@ int main(int argc, char *argv[])
             }
         }
         mesh.cellZones().writeOpt() = IOobject::AUTO_WRITE;
-        runTime++;
+
+        if (!overwrite)
+        {
+            runTime++;
+        }
 
         Info<< "Writing cellZones as new mesh to time " << runTime.timeName()
             << nl << endl;
@@ -1510,7 +1516,10 @@ int main(int argc, char *argv[])
         );
 
 
-        runTime++;
+        if (!overwrite)
+        {
+            runTime++;
+        }
 
 
         // Create regions
diff --git a/applications/utilities/mesh/manipulation/stitchMesh/stitchMesh.C b/applications/utilities/mesh/manipulation/stitchMesh/stitchMesh.C
index cca6763c60..def96a62c9 100644
--- a/applications/utilities/mesh/manipulation/stitchMesh/stitchMesh.C
+++ b/applications/utilities/mesh/manipulation/stitchMesh/stitchMesh.C
@@ -131,6 +131,8 @@ int main(int argc, char *argv[])
     Foam::argList::validOptions.insert("partial", "");
     Foam::argList::validOptions.insert("perfect", "");
 
+    Foam::argList::validOptions.insert("overwrite", "");
+
 #   include "setRootCase.H"
 #   include "createTime.H"
 #   include "createMesh.H"
@@ -141,6 +143,7 @@ int main(int argc, char *argv[])
 
     bool partialCover = args.options().found("partial");
     bool perfectCover = args.options().found("perfect");
+    bool overwrite = args.options().found("overwrite");
 
     if (partialCover && perfectCover)
     {
@@ -349,7 +352,7 @@ int main(int argc, char *argv[])
     IOobjectList objects(mesh, runTime.timeName());
 
     // Read all current fvFields so they will get mapped
-    Info<< "Reading all current volfields" << endl;    
+    Info<< "Reading all current volfields" << endl;
     PtrList<volScalarField> volScalarFields;
     readFields(mesh, objects, volScalarFields);
 
@@ -366,7 +369,7 @@ int main(int argc, char *argv[])
     readFields(mesh, objects, volTensorFields);
 
     //- uncomment if you want to interpolate surface fields (usually bad idea)
-    //Info<< "Reading all current surfaceFields" << endl;    
+    //Info<< "Reading all current surfaceFields" << endl;
     //PtrList<surfaceScalarField> surfaceScalarFields;
     //readFields(mesh, objects, surfaceScalarFields);
     //
@@ -376,7 +379,10 @@ int main(int argc, char *argv[])
     //PtrList<surfaceTensorField> surfaceTensorFields;
     //readFields(mesh, objects, surfaceTensorFields);
 
-    runTime++;
+    if (!overwrite)
+    {
+        runTime++;
+    }
 
     // Execute all polyMeshModifiers
     autoPtr<mapPolyMesh> morphMap = stitcher.changeMesh(true);
diff --git a/applications/utilities/mesh/manipulation/subsetMesh/subsetMesh.C b/applications/utilities/mesh/manipulation/subsetMesh/subsetMesh.C
index 7c5e4baf77..50166feae6 100644
--- a/applications/utilities/mesh/manipulation/subsetMesh/subsetMesh.C
+++ b/applications/utilities/mesh/manipulation/subsetMesh/subsetMesh.C
@@ -60,7 +60,7 @@ void subsetVolFields
 
         Info<< "Subsetting field " << fieldName << endl;
 
-        GeometricField<Type, fvPatchField, volMesh> fld    
+        GeometricField<Type, fvPatchField, volMesh> fld
         (
             IOobject
             (
@@ -94,7 +94,7 @@ void subsetSurfaceFields
 
         Info<< "Subsetting field " << fieldName << endl;
 
-        GeometricField<Type, fvsPatchField, surfaceMesh> fld    
+        GeometricField<Type, fvsPatchField, surfaceMesh> fld
         (
             IOobject
             (
@@ -129,7 +129,7 @@ void subsetPointFields
 
         Info<< "Subsetting field " << fieldName << endl;
 
-        GeometricField<Type, pointPatchField, pointMesh> fld    
+        GeometricField<Type, pointPatchField, pointMesh> fld
         (
             IOobject
             (
@@ -153,12 +153,14 @@ int main(int argc, char *argv[])
 {
     argList::validArgs.append("set");
     argList::validOptions.insert("patch", "patch name");
+    argList::validOptions.insert("overwrite", "");
 
 #   include "setRootCase.H"
 #   include "createTime.H"
 #   include "createMesh.H"
 
     word setName(args.additionalArgs()[0]);
+    bool overwrite = args.options().found("overwrite");
 
 
     Info<< "Reading cell set from " << setName << endl << endl;
@@ -324,14 +326,17 @@ int main(int argc, char *argv[])
     // Write mesh and fields to new time
     // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-    runTime++;
+    if (!overwrite)
+    {
+        runTime++;
+    }
 
     Info<< "Writing subsetted mesh and fields to time " << runTime.value()
         << endl;
     subsetter.subMesh().write();
 
 
-    // Subsetting adds 'subset' prefix. Rename field to be like original.    
+    // Subsetting adds 'subset' prefix. Rename field to be like original.
     forAll(scalarFlds, i)
     {
         scalarFlds[i].rename(scalarNames[i]);