I have a .dat file whose structure is:

```
# Solver information
# Time          U_solver        Ux_initial      Ux_final        Ux_iters        Uy_initial      Uy_final        Uy_iters        U_converged     p_rgh_solver    p_rgh_initial   p_rgh_final     p_rgh_iters     p_rgh_converged
1               smoothSolver    1.000000e+00    9.970980e-02    3   1.000000e+00    7.695910e-02    2   false   GAMGPCG 1.000000e+00    1.344030e-03    2   true
2               smoothSolver    4.692880e-01    2.897640e-02    4   3.109600e-01    1.677980e-02    4   false   GAMGPCG 5.659830e-02    7.100450e-05    2   true
3               smoothSolver    3.224570e-01    2.001160e-02    4   1.225150e-01    6.679510e-03    4   false   GAMGPCG 2.845850e-02    1.661910e-05    2   true
4               smoothSolver    2.448820e-01    1.577350e-02    4   6.852310e-02    3.929980e-03    4   false   GAMGPCG 1.871320e-02    1.306270e-05    2   true
5               smoothSolver    1.966380e-01    1.299020e-02    4   4.082900e-02    2.417220e-03    4   false   GAMGPCG 1.366140e-02    8.455600e-06    2   true
6               smoothSolver    1.644830e-01    1.105430e-02    4   2.524760e-02    1.518770e-03    4   false   GAMGPCG 1.051720e-02    5.429050e-06    2   true
7               smoothSolver    1.410070e-01    9.587650e-03    4   1.614980e-02    9.668240e-04    4   false   GAMGPCG 8.530880e-03    3.920410e-06    2   true
8               smoothSolver    1.230200e-01    8.430390e-03    4   1.108410e-02    6.364510e-04    4   false   GAMGPCG 7.317530e-03    3.798000e-06    2   true
9               smoothSolver    1.084740e-01    7.477240e-03    4   8.517250e-03    4.553620e-04    4   false   GAMGPCG 6.441480e-03    3.981460e-06    2   true
10              smoothSolver    9.651470e-02    6.683950e-03    4   7.464690e-03    3.778350e-04    4   false   GAMGPCG 5.702950e-03    3.980550e-06    2   true
11              smoothSolver    8.635920e-02    6.003360e-03    4   7.318430e-03    7.252650e-04    3   false   GAMGPCG 5.075390e-03    3.904680e-06    2   true
12              smoothSolver    7.764280e-02    5.414310e-03    4   7.463720e-03    7.428540e-04    3   false   GAMGPCG 4.520690e-03    3.631550e-06    2   true
13              smoothSolver    7.003640e-02    4.896810e-03    4   7.639310e-03    3.775700e-04    4   false   GAMGPCG 

```

I would like to plot every *name*\_initial with gnuplot and keep the header name (Ux\_initial, Uy\_initial, etc...)

If there anyway to do this?

I do not have experience with gnuplot, so I am stuck ...