[gmx-users] Specifying more than one index group via the command line

[Francisco Lobo Cabrera]

Hello:

Is it possible to specify several index groups through the command line?

For example, to compute hydrogen bonds, hbond needs two index groups. This
can be done through the interactive prompt, but I need to submit this
instruction wtih a script. I have searched around but have not found
anything.

Thank you for your attention.

Francisco