Cómo instalar Composer en AlmaLinux 8

En este tutorial, le mostraremos cómo instalar Composer en AlmaLinux 8. Para aquellos de ustedes que no lo sabían, Composer es un popular administrador de dependencias para PHP. Funciona como una especie de administrador de proyectos que ayuda al programador a administrar las dependencias que se utilizarán de un proyecto a otro.

Este artículo asume que tiene al menos conocimientos básicos de Linux, sabe cómo usar el shell y, lo más importante, aloja su sitio en su propio VPS. La instalación es bastante simple y asume que está ejecutando en la cuenta de root, de lo contrario, es posible que deba agregar ‘sudo‘a los comandos para obtener privilegios de root. Le mostraré paso a paso la instalación de Composer en un AlmaLinux 8. Puede seguir las mismas instrucciones para Rocky Linux.

Instalar Composer en AlmaLinux 8

Paso 1. Primero, comencemos asegurándonos de que su sistema esté actualizado.

sudo dnf update
sudo dnf install epel-release

Paso 2. Instalación de PHP.

Ejecute los siguientes comandos para instalar el paquete PHP CLI (interfaz de línea de comandos) y todas las demás dependencias:

sudo dnf install @php

Paso 3. Instalar Composer en AlmaLinux 8.

Una vez instalada la CLI de PHP, descargue el script de instalación de Composer:

wget https://getcomposer.org/installer -O composer-installer.php

Una vez descargado el instalador, podemos instalar Composer en nuestro sistema AlmaLinux usando el siguiente comando:

php composer-installer.php --filename=composer --install-dir=/usr/local/bin

Verifique la versión de PHP Composer una vez finalizada la instalación:

composer --version

Producción:

[[email protected] ~]# composer --version
Composer version 2.0.11 2021-05-07 14:11:22

Para consultar la página de uso, utilice:

$ composer
   ______
  / ____/___  ____ ___  ____  ____  ________  _____
 / /   / __ / __ `__ / __ / __ / ___/ _ / ___/
/ /___/ /_/ / / / / / / /_/ / /_/ (__  )  __/ /
____/____/_/ /_/ /_/ .___/____/____/___/_/
                    /_/
Composer version 2.0.11 2021-05-07 14:12:04

Usage:
  command [options] [arguments]

Options:
  -h, --help                     Display this help message
  -q, --quiet                    Do not output any message
  -V, --version                  Display this application version
      --ansi                     Force ANSI output
      --no-ansi                  Disable ANSI output
  -n, --no-interaction           Do not ask any interactive question
      --profile                  Display timing and memory usage information
      --no-plugins               Whether to disable plugins.
  -d, --working-dir=WORKING-DIR  If specified, use the given directory as working directory.
      --no-cache                 Prevent use of the cache
  -v|vv|vvv, --verbose           Increase the verbosity of messages: 1 for normal output, 2 for more verbose output and 3 for debug

Available commands:
  about                Shows the short information about Composer.
  archive              Creates an archive of this composer package.
  browse               Opens the package's repository URL or homepage in your browser.
  check-platform-reqs  Check that platform requirements are satisfied.
  clear-cache          Clears composer's internal package cache.
  clearcache           Clears composer's internal package cache.
  config               Sets config options.
  create-project       Creates new project from a package into given directory.
  depends              Shows which packages cause the given package to be installed.
  diagnose             Diagnoses the system to identify common errors.
  dump-autoload        Dumps the autoloader.
  dumpautoload         Dumps the autoloader.
  exec                 Executes a vendored binary/script.
  global               Allows running commands in the global composer dir ($COMPOSER_HOME).
  help                 Displays help for a command
  home                 Opens the package's repository URL or homepage in your browser.
  i                    Installs the project dependencies from the composer.lock file if present, or falls back on the composer.json.
  info                 Shows information about packages.
  init                 Creates a basic composer.json file in current directory.
  install              Installs the project dependencies from the composer.lock file if present, or falls back on the composer.json.
  licenses             Shows information about licenses of dependencies.
  list                 Lists commands
  outdated             Shows a list of installed packages that have updates available, including their latest version.
  prohibits            Shows which packages prevent the given package from being installed.
  remove               Removes a package from the require or require-dev.
  require              Adds required packages to your composer.json and installs them.
  run                  Runs the scripts defined in composer.json.
  run-script           Runs the scripts defined in composer.json.
  search               Searches for packages.
  self-update          Updates composer.phar to the latest version.
  selfupdate           Updates composer.phar to the latest version.
  show                 Shows information about packages.
  status               Shows a list of locally modified packages, for packages installed from source.
  suggests             Shows package suggestions.
  u                    Upgrades your dependencies to the latest version according to composer.json, and updates the composer.lock file.
  update               Upgrades your dependencies to the latest version according to composer.json, and updates the composer.lock file.
  upgrade              Upgrades your dependencies to the latest version according to composer.json, and updates the composer.lock file.
  validate             Validates a composer.json and composer.lock.
  why                  Shows which packages cause the given package to be installed.
  why-not              Shows which packages prevent the given package from being installed.

¡Felicidades! Ha instalado Composer correctamente. Gracias por usar este tutorial para instalar Composer en su sistema AlmaLinux 8. Para obtener ayuda adicional o información útil, le recomendamos que consulte el sitio web oficial de Composer.