tcpd command not found

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

Introduction

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

tcpd: command not found

or when using sudo you get the following error message

sudo: tcpd: command not found

Solutions to tcpd: command not found

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

In Ubuntu tcpd is provided by tcm package.

tcm is:

The Toolkit for Conceptual Modeling is a collection of software tools to present conceptual models of software systems in the form of diagrams, tables, trees, and the like. A conceptual model of a system is a structure used to represent the requirements or architecture of the system. TCM is meant to be used for specifying and maintaining requirements for desired systems, in which a number of techniques and heuristics for problem analysis, function refinement, behavior specification, and architecture specification are used. TCM takes the form of a suite of graphical editors that can be used in these design tasks. These editors can be categorized into:

  • Generic editors for generic diagrams, generic tables and generic trees.
  • Structured Analysis (SA) editors for entity-relationship diagrams, data and event flow diagrams, state transition diagrams, function refinement trees, transaction-use tables and function-entity type tables.
  • Unified Modeling Language (UML) editors for static structure diagrams, use-case diagrams, activity diagrams, state charts, message sequence diagrams, collaboration diagrams, component diagrams and deployment diagrams (only the first three UML and last two editors are functional at this moment).
  • Miscellaneous editors such as for JSD (process structure and network diagrams), recursive process graphs and transaction decomposition tables.

TCM supports constraint checking for single documents (e.g. name duplication and cycles in is-a relationships). TCM distinguishes built-in constraints (of which a violation cannot even be attempted) from immediate constraints (of which an attempted violation is immediately prevented) and soft constraints (against which the editor provides a warning when it checks the drawing). TCM is planned to support hierarchic graphs, so that it can handle for example hierarchic statecharts. Features to be added later include constraint checking across documents and executable models.

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

sudo apt-get -y install tcm

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

You can also use apt command to install tcm.

sudo apt -y install tcm

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

sudo aptitude install tcm

Summary

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