lambda2 command not found

Introduction

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

lambda2: command not found

or when using sudo you get the following error message

sudo: lambda2: command not found

Solutions to lambda2: command not found

How To Fix lambda2: command not found in Ubuntu / Debian / Kali Linux / Raspbian

In Ubuntu lambda2 is provided by lambda-align2 package.

lambda-align2 is:

Lambda2 is a local biosequence aligner optimized for many query sequences and searches in protein space. It is compatible to the de facto standard tool BLAST, but often outperforms the best currently available alternatives at reproducing BLAST’s results and is the fastest compared with the current state of the art at comparable levels of sensitivity.

This package is for the Lambda (align) v2.x series which has an incompatible command line interface and on disk format from Lambda (align) v1.x.

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

sudo apt-get -y install lambda-align2

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

You can also use apt command to install lambda-align2.

sudo apt -y install lambda-align2

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

sudo aptitude install lambda-align2

Summary

In this tutorial we learn how to fix lambda2 command not found error in Ubuntu / Debian / Kali Linux or Raspbian distribution.