diff --git a/tutorials/mesh/snappyHexMesh/gap_detection/Allclean b/tutorials/mesh/snappyHexMesh/gap_detection/Allclean
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new mode 100755
diff --git a/tutorials/mesh/snappyHexMesh/gap_detection/Allrun b/tutorials/mesh/snappyHexMesh/gap_detection/Allrun
old mode 100644
new mode 100755