Cara menginstal Erlang di Rocky Linux/Alma Linux/CentOS 8

Dalam panduan ini, kita akan menginstal Erlang/OTP di Rocky Linux/Alma Linux/CentOS 8.

Konten Terkait

• Cara menginstal Rabbitmq di Rocky Linux/Alma Linux/Centos 8
• Cara menginstal RabbitMQ di Fedora 35
• Cara menginstal Erlang di Fedora 35

Prasyarat

Anda perlu mengikuti yang berikut ini

• Server Rocky Linux/Alma Linux 8 yang diperbarui
• Akses root atau pengguna dengan akses root
• Akses internet dari server

Daftar Isi

1. Memperbarui sistem
2. Menginstal Erlang
3. Membuat program Hello world

1. Memperbarui sistem

Mari kita pastikan bahwa paket server kita up to date menggunakan perintah ini:

sudo dnf -y update

Mari kita juga menginstal beberapa paket umum

sudo dnf install vim -y

2. Memasang Erlang

Paket Erlang didistribusikan melalui repositori Yum di PackageCloud. Instal repositori PackageCloud Yum menggunakan perintah ini:

curl -s https://packagecloud.io/install/repositories/rabbitmq/erlang/script.rpm.sh | sudo bash

Ini adalah output di server saya

$ curl -s https://packagecloud.io/install/repositories/rabbitmq/erlang/script.rpm.sh | sudo bash

Detected operating system as rocky/8.
Checking for curl...
Detected curl...
Downloading repository file: https://packagecloud.io/install/repositories/rabbitmq/erlang/config_file.repo?os=rocky&dist=8&source=script
done.
Installing yum-utils...

Rocky Linux 8 - AppStream                                                                                                       15 kB/s | 4.8 kB     00:00
Rocky Linux 8 - BaseOS                                                                                                         6.5 kB/s | 4.3 kB     00:00
Rocky Linux 8 - Extras                                                                                                          27 kB/s | 3.5 kB     00:00
rabbitmq_erlang-source                                                                                                         1.3 kB/s | 819  B     00:00
rabbitmq_erlang-source                                                                                                          21 kB/s | 3.8 kB     00:00
Importing GPG key 0xDF309A0B:
 Userid     : "https://packagecloud.io/rabbitmq/erlang (https://packagecloud.io/docs#gpg_signing) <[email protected]>"
 Fingerprint: 2EBD E413 D3CE 5D35 BCD1 5B7C 71C6 3471 DF30 9A0B
 From       : https://packagecloud.io/rabbitmq/erlang/gpgkey
rabbitmq_erlang-source                                                                                                         357  B/s | 296  B     00:00
Package yum-utils-4.0.18-4.el8.noarch is already installed.
Dependencies resolved.
Nothing to do.
Complete!
Generating yum cache for rabbitmq_erlang...
Importing GPG key 0xDF309A0B:
 Userid     : "https://packagecloud.io/rabbitmq/erlang (https://packagecloud.io/docs#gpg_signing) <[email protected]>"
 Fingerprint: 2EBD E413 D3CE 5D35 BCD1 5B7C 71C6 3471 DF30 9A0B
 From       : https://packagecloud.io/rabbitmq/erlang/gpgkey
Generating yum cache for rabbitmq_erlang-source...

The repository is setup! You can now install packages.

Sekarang kita dapat menginstal erlang dari repo yang ditambahkan:

$ sudo dnf install erlang
Last metadata expiration check: 0:00:27 ago on Fri 12 Nov 2021 07:30:53 AM EAT.
Dependencies resolved.
===============================================================================================================================================================
 Package                           Architecture                      Version                                  Repository                                  Size
===============================================================================================================================================================
Installing:
 erlang                            x86_64                            24.1-1.el8                               rabbitmq_erlang                             20 M

Transaction Summary
===============================================================================================================================================================
Install  1 Package

Total download size: 20 M
Installed size: 36 M
Is this ok [y/N]: y
Downloading Packages:
erlang-24.1-1.el8.x86_64.rpm                                                                                                    42 MB/s |  20 MB     00:00
---------------------------------------------------------------------------------------------------------------------------------------------------------------
Total                                                                                                                           41 MB/s |  20 MB     00:00
Running transaction check
Transaction check succeeded.
Running transaction test
Transaction test succeeded.
Running transaction
  Preparing        :                                                                                                                                       1/1
  Installing       : erlang-24.1-1.el8.x86_64                                                                                                              1/1
  Running scriptlet: erlang-24.1-1.el8.x86_64                                                                                                              1/1
  Verifying        : erlang-24.1-1.el8.x86_64                                                                                                              1/1

Installed:
  erlang-24.1-1.el8.x86_64

Complete!

3. Membuat program Hello world

Buat hello.erl berkas

vim hello.erl

Tambahkan ini ke file

% This is a test Hello World Erlang Code
-module(hello).
-import(io,[fwrite/1]).
-export([helloworld/0]).

helloworld() ->
   fwrite("Hello from Citizix, Erlang World!\n").

Kompilasi dari shell Erlang. Jangan lupa tanda titik (“titik”) di akhir setiap perintah:

$ erl
Erlang/OTP 24 [erts-12.1] [source] [64-bit] [smp:2:2] [ds:2:2:10] [async-threads:1] [jit]

Eshell V12.1  (abort with ^G)
1> c(hello).
{ok,hello}
2> hello:helloworld().
Hello from Citizix, Erlang World!
ok
3>

Anda telah berhasil menginstal Erlang di sistem Anda.

Kesimpulan

Terima kasih telah menggunakan tutorial ini untuk menginstal bahasa pemrograman Erlang pada sistem Rocky Linux/Alma Linux 8 Anda. Untuk bantuan tambahan atau informasi yang berguna, kami menyarankan Anda untuk memeriksa situs resmi Erlang.