This file is indexed.

/usr/share/gromacs/top/charmm27.ff/dna.c.tdb is in gromacs-data 2018.1-1.

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
[ None ]

[ 3' ]
[ replace ]
C3'	C3'	CN7	12.011 	   0.14	
H3'	H3'	HN7	1.008	   0.09
O3'	O3'	ON5	15.9994   -0.66
[ Add ]
1	2	H3T	O3'	C3'	C4'
		HN5     1.008     0.43	-1