composer本体をLinuxへのインストールする
19 Apr 2017参考
https://getcomposer.org/doc/00-intro.md#installation-linux-unix-osx
curl -sS https://getcomposer.org/installer | php
sudo mv composer.phar /usr/local/bin/composer
参考
https://getcomposer.org/doc/00-intro.md#installation-linux-unix-osx
curl -sS https://getcomposer.org/installer | php
sudo mv composer.phar /usr/local/bin/composer