clustalw command not found

Introduction

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

clustalw: command not found

or when using sudo you get the following error message

sudo: clustalw: command not found

Solutions to clustalw: command not found

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

In Ubuntu clustalw is provided by clustalw package.

clustalw is:

This program performs an alignment of multiple nucleotide or amino acid sequences. It recognizes the format of input sequences and whether the sequences are nucleic acid (DNA/RNA) or amino acid (proteins). The output format may be selected from in various formats for multiple alignments such as Phylip or FASTA. Clustal W is very well accepted.

The output of Clustal W can be edited manually but preferably with an alignment editor like SeaView or within its companion Clustal X. When building a model from your alignment, this can be applied for improved database searches. The Debian package hmmer creates such in form of an HMM.

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

sudo apt-get -y install clustalw

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

You can also use apt command to install clustalw.

sudo apt -y install clustalw

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

sudo aptitude install clustalw

Summary

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