brltty-ttb command not found

In this troubleshooting guide we learn how to fix brltty-ttb command not found error message

Introduction

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

brltty-ttb: command not found

or when using sudo you get the following error message

sudo: brltty-ttb: command not found

Solutions to brltty-ttb: command not found

How To Fix brltty-ttb: command not found in Ubuntu / Debian / Kali Linux / Raspbian

In Ubuntu brltty-ttb is provided by brltty package.

brltty is:

BRLTTY is a daemon which provides access to the console (text mode) for a blind person using a braille display. It drives the braille display and provides complete screen review functionality. The following display models are supported:

  • Alva/Optelec (ABT3xx, Delphi, Satellite, Braille System 40, BC 640/680)
  • Baum
  • BrailComm
  • BrailleLite
  • BrailleNote
  • Cebra
  • EcoBraille
  • EuroBraille (AzerBraille, Clio, Esys, Iris, NoteBraille, Scriba)
  • Freedom Scientific (Focus and PacMate)
  • Handy Tech
  • HIMS (Braille Sense, SyncBraille)
  • HumanWare (Brailliant)
  • Iris
  • LogText 32
  • MDV
  • Metec (BD-40)
  • NinePoint
  • Papenmeier
  • Pegasus
  • Seika
  • Tieman (Voyager, CombiBraille, MiniBraille, MultiBraille, BraillePen/EasyLink)
  • Tivomatic (Albatross)
  • TSI (Navigator, PowerBraille)
  • VideoBraille
  • VisioBraille

BRLTTY also provides a client/server based infrastructure for applications wishing to utilize a Braille display. The daemon process listens for incoming TCP/IP connections on a certain port. A shared object library for clients is provided in the package libbrlapi0.8. A static library, header files and documentation is provided in package libbrlapi-dev. Bindings to other programming languages can be found in cl-brlapi (Lisp), libbrlapi-java (Java) and python3-brlapi (Python).

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

sudo apt-get -y install brltty

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

You can also use apt command to install brltty.

sudo apt -y install brltty

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

sudo aptitude install brltty

Summary

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