irafcl command not found

Introduction

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

irafcl: command not found

or when using sudo you get the following error message

sudo: irafcl: command not found

Solutions to irafcl: command not found

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

In Ubuntu irafcl is provided by iraf package.

iraf is:

IRAF is the “Image Reduction and Analysis Facility”. The main IRAF distribution includes a good selection of programs for general image processing and graphics.

Other external or layered packages are available for applications such as data acquisition or handling data from other observatories and wavelength regimes such as the Hubble Space Telescope (optical), EUVE (extreme ultra-violet), or ROSAT and AXAF (X-ray). These external packages are distributed separately from the main IRAF distribution but can be easily installed. The IRAF system also the programmable Command Language scripting facility.

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

sudo apt-get -y install iraf

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

You can also use apt command to install iraf.

sudo apt -y install iraf

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

sudo aptitude install iraf

Summary

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