How To Install nekovm on CentOS 8
Introduction
In this tutorial we learn how to install nekovm on CentOS 8.
What is nekovm
Neko is a high-level dynamically typed programming language which can also be used as an embedded scripting language. It has been designed to provide a common run-time for several different languages. Neko is not only very easy to learn and use, but also has the flexibility of being able to extend the language with C libraries. You can even write generators from your own language to Neko and then use the Neko run-time to compile, run, and access existing libraries. If you need to add a scripting language to your application, Neko provides one of the best trade-offs available between simplicity, extensibility and speed. Neko allows the language designer to focus on design whilst reusing a fast and well constructed run-time, as well as existing libraries for accessing file system, network, databases, XML… Neko has a compiler and virtual machine. The Virtual Machine is both very lightweight and extremely well optimized so that it can run very quickly. The VM can be easily embedded into any application and your libraries are directly accessible using the C foreign function interface. The compiler converts a source .neko file into a byte-code .n file that can be executed with the Virtual Machine. Although the compiler is written in Neko itself, it is still very fast. You can use the compiler as standalone command-line executable separated from the VM, or as a Neko library to perform compile-and-run for interactive languages.
We can use yum or dnf to install nekovm on CentOS 8. In this tutorial we discuss both methods but you only need to choose one of method to install nekovm.
Install nekovm on CentOS 8 Using dnf
Update yum database with dnf using the following command.
sudo dnf makecache --refresh
The output should look something like this:
CentOS Linux 8 - AppStream 43 kB/s | 4.3 kB 00:00
CentOS Linux 8 - BaseOS 65 kB/s | 3.9 kB 00:00
CentOS Linux 8 - ContinuousRelease 43 kB/s | 3.0 kB 00:00
CentOS Linux 8 - Extras 23 kB/s | 1.5 kB 00:00
CentOS Linux 8 - FastTrack 40 kB/s | 3.0 kB 00:00
CentOS Linux 8 - HighAvailability 36 kB/s | 3.9 kB 00:00
CentOS Linux 8 - Plus 24 kB/s | 1.5 kB 00:00
CentOS Linux 8 - PowerTools 50 kB/s | 4.3 kB 00:00
Extra Packages for Enterprise Linux Modular 8 - x86_64 13 kB/s | 9.2 kB 00:00
Extra Packages for Enterprise Linux 8 - x86_64 24 kB/s | 8.5 kB 00:00
Metadata cache created.
After updating yum database, We can install nekovm using dnf by running the following command:
sudo dnf -y install nekovm
Install nekovm on CentOS 8 Using yum
Update yum database with yum using the following command.
sudo yum makecache --refresh
The output should look something like this:
CentOS Linux 8 - AppStream 43 kB/s | 4.3 kB 00:00
CentOS Linux 8 - BaseOS 65 kB/s | 3.9 kB 00:00
CentOS Linux 8 - ContinuousRelease 43 kB/s | 3.0 kB 00:00
CentOS Linux 8 - Extras 23 kB/s | 1.5 kB 00:00
CentOS Linux 8 - FastTrack 40 kB/s | 3.0 kB 00:00
CentOS Linux 8 - HighAvailability 36 kB/s | 3.9 kB 00:00
CentOS Linux 8 - Plus 24 kB/s | 1.5 kB 00:00
CentOS Linux 8 - PowerTools 50 kB/s | 4.3 kB 00:00
Extra Packages for Enterprise Linux Modular 8 - x86_64 13 kB/s | 9.2 kB 00:00
Extra Packages for Enterprise Linux 8 - x86_64 24 kB/s | 8.5 kB 00:00
Metadata cache created.
After updating yum database, We can install nekovm using yum by running the following command:
sudo yum -y install nekovm
How To Uninstall nekovm on CentOS 8
To uninstall only the nekovm package we can use the following command:
sudo dnf remove nekovm
nekovm Package Contents on CentOS 8
/usr/bin/neko
/usr/bin/nekoc
/usr/bin/nekoml
/usr/bin/nekotools
/usr/lib/.build-id
/usr/lib/.build-id/03
/usr/lib/.build-id/03/a74a77c45d5c574f91457a73ae53edd6eb87d3
/usr/lib/.build-id/07
/usr/lib/.build-id/07/4c2ee2aff0ddfea1431a800ace6a29b984c357
/usr/lib/.build-id/11
/usr/lib/.build-id/11/571385d3d5361bcea53e53d6d7c3b69d29db69
/usr/lib/.build-id/11/d2dd3cf3c4eaad833f3b5f22db8746e398ffc4
/usr/lib/.build-id/39
/usr/lib/.build-id/39/44e1afc61f29d173998366427dfc40354a609b
/usr/lib/.build-id/4a
/usr/lib/.build-id/4a/6f746ce23d8fb88a46535941c4d648b72538f4
/usr/lib/.build-id/60
/usr/lib/.build-id/60/7921d7961ba7888af4d72b5666b27813fd8661
/usr/lib/.build-id/84
/usr/lib/.build-id/84/58b2aff2576826ae1d132fab44a9421f0e8d64
/usr/lib/.build-id/86
/usr/lib/.build-id/86/c00c9a91fb0fc1e6a33cb1c858269ae9617b8d
/usr/lib/.build-id/89
/usr/lib/.build-id/89/04c485fe5afa0f8ad6147550143bd4fae99739
/usr/lib/.build-id/9f
/usr/lib/.build-id/9f/9a80a80ea5dae95caf664410442abffb09d63c
/usr/lib/.build-id/a5
/usr/lib/.build-id/a5/644a9dc22e1184fdffd03c4bd5a0c740414c67
/usr/lib/.build-id/cd
/usr/lib/.build-id/cd/a38a011d779da04863d960664e0c16cfcdffdd
/usr/lib/.build-id/db
/usr/lib/.build-id/db/0eb4f990a7e1b184bd7aa91f99cbb72c7c3d87
/usr/lib/.build-id/db/c6452318ab7da0937a3b24c6c625f7a6447b7e
/usr/lib64/libneko.so.2
/usr/lib64/libneko.so.2.3.0
/usr/lib64/neko
/usr/lib64/neko/mod_neko2.ndll
/usr/lib64/neko/mod_tora2.ndll
/usr/lib64/neko/mysql.ndll
/usr/lib64/neko/mysql5.ndll
/usr/lib64/neko/nekoml.std
/usr/lib64/neko/regexp.ndll
/usr/lib64/neko/sqlite.ndll
/usr/lib64/neko/ssl.ndll
/usr/lib64/neko/std.ndll
/usr/lib64/neko/ui.ndll
/usr/lib64/neko/zlib.ndll
/usr/share/doc/nekovm
/usr/share/doc/nekovm/README.md
/usr/share/licenses/nekovm
/usr/share/licenses/nekovm/LICENSE
References
Summary
In this tutorial we learn how to install nekovm on CentOS 8 using yum and dnf.