---
name: "gmx-dump"
section: "1"
platform: "linux"
package: "gromacs-data"
version: "2025.2-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/gmx-dump"
---

# gmx-dump(1)

Make binary files human readable

## NAME

gmx-dump - Make binary files human readable

## SYNOPSIS

```
gmx dump [-s <.tpr>] [-f <.xtc/.trr/...>] [-e <.edr>] [-cp <.cpt>]
         [-p <.top>] [-mtx <.mtx>] [-om <.mdp>] [-[no]nr]
         [-[no]param] [-[no]sys] [-[no]orgir]
```

## DESCRIPTION

**gmx dump** reads a run input file (*.tpr*), a trajectory (*.trr*/*.xtc*/**tng**), an energy file (*.edr*), a checkpoint file (*.cpt*) or topology file (*.top*) and prints that to standard output in a readable format. This program is essential for checking your run input file in case of problems.

## OPTIONS

Options to specify input files:

- **-s \<.tpr\> (Optional)**

  Run input file to dump

- **-f \<.xtc/.trr/...\> (Optional)**

  Trajectory file to dump: *xtc* *trr* *cpt* *gro* *g96* *pdb* *tng*

- **-e \<.edr\> (Optional)**

  Energy file to dump

- **-cp \<.cpt\> (Optional)**

  Checkpoint file to dump

- **-p \<.top\> (Optional)**

  Topology file to dump

- **-mtx \<.mtx\> (Optional)**

  Hessian matrix to dump

Options to specify output files:

- **-om \<.mdp\> (Optional)**

  grompp input file from run input file

Other options:

- **-\[no\]nr (yes)**

  Show index numbers in output (leaving them out makes comparison easier, but creates a useless topology)

- **-\[no\]param (no)**

  Show parameters for each bonded interaction (for comparing dumps, it is useful to combine this with -nonr)

- **-\[no\]sys (no)**

  List the atoms and bonded interactions for the whole system instead of for each molecule type

- **-\[no\]orgir (no)**

  Show input parameters from tpr as they were written by the version that produced the file, instead of how the current version reads them

## KNOWN ISSUES

- •

  The *.mdp* file produced by **-om** can not be read by grompp.

## SEE ALSO

**[gmx(1)](/gmx/1.md)**

More information about GROMACS is available at \<*http://www.gromacs.org/*\>.

## COPYRIGHT

2025, GROMACS development team