[gmx-users] Is there any way to count the number of water molecules around a ligand during simulation of its binding pathway?

[Hassan Aaryapour]

Dear Gromacs Users
I would like to calculate the presence of water molecules number as a
function of time, around a ligand during binding to its pocket from a
trj.xtc file.
How can I do it by Gromacs or any other program?