opt command not found

Introduction

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

opt: command not found

or when using sudo you get the following error message

sudo: opt: command not found

Solutions to opt: command not found

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

In Ubuntu opt is provided by llvm package.

llvm is:

The Low-Level Virtual Machine (LLVM) is a collection of libraries and tools that make it easy to build compilers, optimizers, Just-In-Time code generators, and many other compiler-related programs.

This is a dependency package providing the default llvm package.

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

sudo apt-get -y install llvm

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

You can also use apt command to install llvm.

sudo apt -y install llvm

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

sudo aptitude install llvm

Summary

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