外壳配置程序在配置时运行外壳程序脚本。
$setup = <<SETUP
# You can write your shell script between here ...
sudo echo "Hello, World!" > /etc/motd.tail
# ... and here.
SETUP
Vagrant.configure("2") do |config|
config.vm.box = "ubuntu/trusty64"
config.vm.provision "shell", inline: $setup
end