After doing PSInSAR, I want to plot the mean velocity of my area on the DEM . Following the chapter on ‘‘Plotting” in StaMPS module , I got the plot_v.gmt to plot it on GMT by modifying the script . Now I am using GMT 6.6.0 on windows platform to plot the map. But , I got some commands are not recognised as internal or external command, operable program or batch file. How can I solve this ?