Como instalar Composer en Mac OSx

Pasos para instalar composer en MAC OSx:

  1. Debemos abrir el terminal +space y escribimos Terminal
    Screen Shot 2015-07-01 at 9.14.52 PM
  2. Nos dirigimos a la carpeta tmp
    cd /tmp
  3. Descargamos el paquete de composer a través de curl
    curl -sS https://getcomposer.org/installer | php
  4. Movemos el archivo phar para tenerlo de forma global
    mv composer.phar /usr/local/bin/composer
  5. Revisamos que se haya actualizado correctamente para ello realizamos composer -v deberiamos obtener lo siguiente:
    Franciss-MacBook-Pro:tmp FraGoTe$ composer -v
    ______
    / ____/___ ____ ___ ____ ____ ________ _____
    / / / __ \/ __ `__ \/ __ \/ __ \/ ___/ _ \/ ___/
    / /___/ /_/ / / / / / / /_/ / /_/ (__ ) __/ /
    \____/\____/_/ /_/ /_/ .___/\____/____/\___/_/
    /_/
    Composer version 1.0-dev (8775c948956c9e0e0a5fd723cd84c94b3ea3d7e9) 2015-07-01 09:29:53
    Usage:
    command [options] [arguments]
    
    Options:
    --help (-h) Display this help message
    --quiet (-q) Do not output any message
    --verbose (-v|vv|vvv) Increase the verbosity of messages: 1 for normal output, 2 for more verbose output and 3 for debug
    --version (-V) Display this application version
    --ansi Force ANSI output
    --no-ansi Disable ANSI output
    --no-interaction (-n) Do not ask any interactive question
    --profile Display timing and memory usage information
    --working-dir (-d) If specified, use the given directory as working directory.
    
    Available commands:
    about Short information about Composer
    archive Create an archive of this composer package
    browse Opens the package's repository URL or homepage in your browser.
    clear-cache Clears composer's internal package cache.
    clearcache Clears composer's internal package cache.
    config Set config options
    create-project Create new project from a package into given directory.
    depends Shows which packages depend on the given package
    diagnose Diagnoses the system to identify common errors.
    dump-autoload Dumps the autoloader
    dumpautoload Dumps the autoloader
    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.
    info Show 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 Show information about licenses of dependencies
    list Lists commands
    remove Removes a package from the require or require-dev
    require Adds required packages to your composer.json and installs them
    run-script Run the scripts defined in composer.json.
    search Search for packages
    self-update Updates composer.phar to the latest version.
    selfupdate Updates composer.phar to the latest version.
    show Show information about packages
    status Show a list of locally modified packages
    update Updates your dependencies to the latest version according to composer.json, and updates the composer.lock file.
    validate Validates a composer.json

Como instalar Composer en Ubuntu

Recuerda que para esto debes tener instalado php y habilitado curl:

Instalar php:

$ sudo apt-get install php5

Instalar el módulo curl:

$ sudo apt-get install php5-curl

Luego de ello ejecuten el comando para verificar que los módulos están cargados:

$ php -m

Y luego deben mostrarle algo como esto:

[PHP Modules]
bcmath
bz2
calendar
Core
ctype
curl
date
dba
dom
ereg
exif
fileinfo
filter
ftp
gettext
hash
iconv
json
libxml
mbstring
mhash
openssl
pcntl
pcre
PDO
Phar
posix
readline
Reflection
session
shmop
SimpleXML
soap
sockets
SPL
standard
sysvmsg
sysvsem
sysvshm
tokenizer
wddx
xdebug
xml
xmlreader
xmlwriter
Zend OPcache
zip
zlib

[Zend Modules]
Xdebug
Zend OPcache

Para hacer la instalación global de composer debes ejecutar el siguiente comando:

curl -sS https://getcomposer.org/installer | php
mv composer.phar /usr/local/bin/composer