This file is indexed.

/usr/share/gromacs/top/amber96.ff/watermodels.dat 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
tip3p    TIP3P     TIP 3-point, recommended
tip4p    TIP4P     TIP 4-point
tip4pew  TIP4P-Ew  TIP 4-point optimized with Ewald
tip5p    TIP5P     TIP 5-point (see http://redmine.gromacs.org/issues/1348 for issues)
spc      SPC       simple point charge
spce     SPC/E     extended simple point charge