Export Netcdf variable to text

Hi, I am a newbie with netcdf files and have been trying to export one of the variables from netcdf .nc format to a text file (ascii etc). I am able to read the netcdf file using ncdump, and get the variable using nc_varget. But when I try saving the variable (which is 4D double), it does not saves a 4D file - instead it saves just the values in that particular variable. The commands I am using are for e.g.

 variable = nc_varget('filename.nc','var')
 dlmwrite('variable.txt', variable)

can someone help me please? If you have a code which does this can you share it? Thanks

[Edit] Format code. [AU]

[Ashish Uthama]

"it does not saves a 4D file - instead it saves just the values in that particular variable. " - could you clarify further? How exactly do you want to save the 4D data in a text file? I believe your code snippet would just write all values of that 4D Netcdf variable as a single stream of values in the text file.