add script used with ncatted (netCDF Attribute Editor) and written by G. Alory

http://linux.die.net/man/1/ncatted

tsg_tools/change_attr

+file_nc=DM_3FLZ_2012j_TSG.nc
+ncatted -a DATA_RESTRICTIONS,global,o,c,"The data are provided for educational and research purposes only. Commercial use is prohibited." $file_nc
+ncatted -a CITATION,global,o,c,"Publications using these data should acknowledge the French Sea Surface Salinity Observation Service and give the related website (http://www.legos.obs-mip.fr/observations/sss/)." $file_nc
+ncatted -a COMMENT,global,o,c,"The SAMPLING PERIOD is the period of the median filter applied on the raw 15 s measurements, and corresponds to the data resolution." $file_nc
+ncatted -a PROCESSING_STATES,global,o,c,"2C+" $file_nc
+ncatted -a HISTORY,global,o,c,"N/A" -h $file_nc
+ncdump -h $file_nc
+