how to use the Cuthill-McKee algorithm (symrcm) for msh files

I have built a mesh of a cylindrical structure using GMSH, I would like to reduce the bandwidth of the nodes, for do that I woud like to use the Cuthill-McKee algorithm. I think matlab has it built in thought the function symrcm(), but I don't know how to use it for a .msh file.

For a cylinder, the meshing file is some like this:

$ MeshFormat

2.2 0 8

$ EndMeshFormat

$ Nodes

6870

1 300 -7.347638122934264e-014 10

2 300 -7.347638122934264e-014 0

I attach the cylinder mesh file,

Thanks so much.