/usr/share/metview/etc/PercentileDef is in metview-data 4.8.0-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | PERCENTILE; Percentile Application
{
	SOURCE
	{
		OFF ; OFF
		@
	} = OFF
	DATA
		[ interface = icon, class = GRIB, exclusive = false,
		  help = help_data,
		  help_directory  = '/Metview/Defaults',
		  help_name       = Data,
		  help_class      = RETRIEVE,
		  help_definition = ( RETRIEVE,  
					 GRID = 1.5/1.5 )  ]
	{ @ / }
	PERCENTILES
	{
		*
		/
	} = 10.0
	INTERPOLATION
	{
		NEAREST_NEIGHBOUR
		LINEAR
	} = NEAREST_NEIGHBOUR
}
 |