[gmx-users] How to suppress the screen info & how to overwrite files?

Justin A. Lemkul jalemkul at vt.edu
Fri Aug 12 19:23:25 CEST 2011

Hiroshi Fujisaki wrote:
> Dear gromacs users,
> I am using gromacs 4.0.7 or higher and I would like to 
> ask you two simple questions. 
> For a certain purpose, I use gromacs (grompp or mdrun) 
> many times, and  the same information appear on the 
> screen, which might make the computational process slow. 
> How can I suppress such information on the screen? 

Use the -quiet option or redirect all screen output with &>/dev/null.

> The other question is, when using gromacs many times,
> it writes many backup files with "sharp", which would be 
> messy or make the process slow. How can I overwrite files 
> in gromacs? 

Try setting the environment variable GMX_MAXBACKUP to zero.



Justin A. Lemkul
Ph.D. Candidate
ICTAS Doctoral Scholar
Department of Biochemistry
Virginia Tech
Blacksburg, VA
jalemkul[at]vt.edu | (540) 231-9080


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