re2c command not found

Introduction

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

re2c: command not found

or when using sudo you get the following error message

sudo: re2c: command not found

Solutions to re2c: command not found

How To Fix re2c: command not found in Ubuntu / Debian / Kali Linux / Raspbian

In Ubuntu re2c is provided by re2c package.

re2c is:

re2c’s main goal is generating fast lexers: at least as fast as their reasonably optimized hand-coded counterparts. Instead of using a traditional table-driven approach, re2c encodes the generated finite state automata directly in the form of conditional jumps and comparisons. The resulting programs are faster and often smaller than their table-driven analogues, and they are much easier to debug and understand. Quite a few optimizations are applied in order to speed up and compress the generated code.

Another distinctive feature is its flexible interface: instead of assuming a fixed program template, re2c lets the programmer write most of the interface code and adapt the generated lexer to any particular environment.

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

sudo apt-get -y install re2c

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

You can also use apt command to install re2c.

sudo apt -y install re2c

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

sudo aptitude install re2c

Summary

In this tutorial we learn how to fix re2c command not found error in Ubuntu / Debian / Kali Linux or Raspbian distribution.