Shocktrooper: mass server patching for shellshock

It's super-simple (wrote it for this answer), but should be less than 5 min if anyone need something quick.

    from fabric.api import *

    # Fabric
    #
    # Simple tool to execute commands on multiple machines.
    # Use for easier, ad-hoc changes, such as package updates.
    #
    # http://docs.fabfile.org
    #
    # Installation on OS X
    # `brew update && brew install python && pip install fabric`

    # use local ssh config
    env.use_ssh_config = True

    # Hard-coding host IPs is not ideal! There are better ways:
    # http://docs.fabfile.org/en/latest/usage/execution.html#defining-host-lists
    all_nodes = [
      '10.10.10.1',
      '10.10.10.2',
    ]

    # print uptime
    # usage: `fab uptime`
    @hosts(all_nodes)
    def uptime():
      run('uptime')

    # install package via apt
    # usage: `fab install_package:my-package-name`
    @hosts(all_nodes)
    def install_package(package):
      run('sudo apt-get update && sudo apt-get install {name}'.format(name=package))

    # check package version
    # usage: `fab package_version:my-package-name`
    @hosts(all_nodes)
    def package_version(package):
      run('dpkg -s {name} | grep Version'.format(name=package))