How To Install s9cols on CentOS 8

One-liner Install Command

If you are only interested in the installation command, here is a quick answer for you:

sudo yum makecache && sudo yum -y install scheme9

sudo dnf makecache && sudo dnf -y install scheme9

But if you are interested in the details with step-by-step instructions, the following information will be helpful.

What is s9cols and How to Install It?

First things first, you will need access to a server or computer running CentOS 8. This guide was written specifically with a server running CentOS 8 in mind, although it should also work on older, supported versions of the operating system.

Also, make sure you are running a regular, non-root user with sudo privileges configured on your server. When you have an account available, log in as your non-root user to begin.

There are several ways to install s9cols on CentOS 8. You can use (links are clickable):

In the following sections, we will describe each method in detail. You can choose one of them or refer to the recommended one.

Install s9cols on CentOS 8 using dnf

First, update dnf packages database with dnf by running the next command:

sudo dnf makecache --refresh

After updating database, You can install s9cols using dnf by running the following command:

sudo dnf -y install scheme9

Install s9cols on CentOS 8 using yum

Because s9cols is available in CentOS 8’s default repositories, it is possible to install it from these repositories using the yum packaging system.

To begin, update local packages database with yum using the following command.

sudo yum makecache --refresh

Now can install s9cols package on your server/computer by running the following command:

sudo yum -y install scheme9

How to upgrade (update) a single package s9cols using yum?

To update all the packages available on the system:

yum update

If you want to update a specific package like s9cols in this example you should use the following command:

yum update scheme9

To downgrade a package to an earlier version:

yum downgrade scheme9

How to Upgrade s9cols on CentOS 8 with dnf?

When you run the dnf update, all system packages with available updates are updated. However, if you want to upgrade a single package, then you would have to pass the package name as the argument to the dnf update command.

dnf update scheme9

How To remove s9cols from CentOS 8

To uninstall only the s9cols package you can execute the following command:

sudo dnf remove scheme9

Extra info and code examples

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.

Conclusion

You now have a full guide on how to install s9cols using dnf and yum package managers. Also, we showed how to update manually as a single package and different ways to uninstall the s9cols from CentOS 8.

See also: