s9cols command not found

Introduction

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

s9cols: command not found

or when using sudo you get the following error message

sudo: s9cols: command not found

Solutions to s9cols: command not found

How To Fix s9cols: command not found in Ubuntu / Debian / Kali Linux / Raspbian

In Ubuntu s9cols is provided by scheme9 package.

scheme9 is:

Scheme 9 from Empty Space is an interpreter for a broad subset of R4RS Scheme, and runs in many popular environments, including Linux, *BSD, the unmentionable horror, and Plan 9. The S9fES code strives to be simple and comprehensible. It is particularly interesting to people who want to (a) try Scheme without having to jump through too many hoops (S9fES is very portable); or (b) study the implementation of Scheme (in a language other than Scheme). A free online textbook describing the system is also available.

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

sudo apt-get -y install scheme9

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

You can also use apt command to install scheme9.

sudo apt -y install scheme9

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

sudo aptitude install scheme9

Summary

In this tutorial we learn how to fix s9cols command not found error in Ubuntu / Debian / Kali Linux or Raspbian distribution.