This file is indexed.

/usr/share/dx/samples/data/CO2.general is in dxsamples 4.4.0-1.

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
# This general array importer header describes the data set "CO2.lis".
# This data consists of scattered data values of carbon dioxide concentration.
# There are 53 members of the time series, each one of which has 21 data 
# values.  The field keyword indicates two fields to be read: locations and
# co2_conc.  The locations keyword is special, and indicates that those 
# values are to be the positions to associate with each data value.  The
# positions are 2-vectors (latitude and longitude), while the carbon dioxide
# concentration measurements are scalar values. The layout keyword describes
# the formatting of the values in the file, while the interleaving keyword
# indicates that the fields (locations and data values) are interleaved in 
# the file.
#
#
file = CO2.lis
points = 21
series = 53 
field = locations, co2_conc 
structure = 2-vector, scalar
# 25 bytes for time (to skip), 14 bytes each for latitude, longitude. 
# skip 7, then 7 bytes for CO2 
layout = 25, 14, 7, 7
header = lines 8
interleaving = field