Simple Fabric example script. Save it as "fabfile.py" in a folder, and open a shell up to that folder. Example commands: "fab prod test:AAAAAA", or "fab localhost tail".

gistfile1.py

# Most important thing to import
from fabric.api import * 

# Not necessary, but useful for making timestamps
import time 

# Allows Fabric to use profiles from your ~/.ssh/config file
env.use_ssh_config = True

def prod():
  "Connects to production servers."
  env.hosts = ['user@somehost'] # comma-separated list, like: ['host1','host2','host3']

def localhost():
  "Connects to localhost."
  env.hosts = ['user@localhost']

# optional decorator, runs commands in this function concurrently across all env.hosts
@parallel
def test(param1='a',param2='b'):
  "Runs 'test' commands"
  print('Params: %s %s' % (param1, param2))
  run('ls -al')

def tail():
  "Runs tail command..." 
  run('tail -f /var/log/apache2/other_vhosts_access.log')