phototonic command not found

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

Introduction

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

phototonic: command not found

or when using sudo you get the following error message

sudo: phototonic: command not found

In Ubuntu phototonic is provided by phototonic package.

phototonic is:

Phototonic is an image viewer and organizer for Linux written in C++ and Qt5.

Features:

Light weight with a smooth and clear user interface
Does not depend on any desktop environment
Supports several customized thumbnail layouts
Load thumbnails and browse images recursively on a folder tree
Dynamic thumbnails loading, enables fast browsing of very large folders
Filter thumbnails by name
Image navigation and file management
Slide show
Transformation: rotation, flipping, cropping, image mirroring and scaling
Adjust image brightness, saturation, hue and contrast
Keep transformations, zoom and colors while browsing multiple images
Extensive automatic and manual zoom options
Supported image formats: BMP, GIF, ICO, JPEG, MNG, PBM, PGM, PNG, PPM, TGA, XBM, XPM and SVG, SVGZ, TIFF with plugins
Supports GIF animations
Keyboard shortcuts and mouse behavior customization
Load image files or folders from command line
Open images with external applications

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

sudo apt-get -y install phototonic

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

You can also use apt command to install phototonic.

sudo apt -y install phototonic

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

sudo aptitude install phototonic

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