obgui command not found

In this troubleshooting guide we learn how to fix obgui command not found error message

Introduction

When you run more command in linux terminal / console, you get the following error message

obgui: command not found

or when using sudo you get the following error message

sudo: obgui: command not found

Solutions to obgui: command not found

How To Fix obgui: command not found in Ubuntu / Debian / Kali Linux / Raspbian

In Ubuntu obgui is provided by openbabel-gui package.

openbabel-gui is:

Open Babel is a chemical toolbox designed to speak the many languages of chemical data. It allows one to search, convert, analyze, or store data from molecular modeling, chemistry, solid-state materials, biochemistry, or related areas. Features include:

  • Hydrogen addition and deletion
  • Support for Molecular Mechanics
  • Support for SMARTS molecular matching syntax
  • Automatic feature perception (rings, bonds, hybridization, aromaticity)
  • Flexible atom typer and perception of multiple bonds from atomic coordinates
  • Gasteiger-Marsili partial charge calculation

File formats Open Babel supports include PDB, XYZ, CIF, CML, SMILES, MDL Molfile, ChemDraw, Gaussian, GAMESS, MOPAC and MPQC.

This package contains the openbabel GUI based on wxWidgets.

To fix this problem, we can install more using the command below.

sudo apt-get -y install openbabel-gui

This command might take some time to finish depending on your machine internet connection.

You can also use apt command to install openbabel-gui.

sudo apt -y install openbabel-gui

Or if you have aptitude installed you can use the following command.

sudo aptitude install openbabel-gui

Summary

In this tutorial we learn how to fix obgui command not found error in Ubuntu / Debian / Kali Linux or Raspbian distribution.