This Python script can be used to execute a Linux command on multiple targets. This assumes a single username and password can be used on the targets.

This script will only work if you are able to make an SSH connection to the target server with a username and password. If the SSH server is configured to only accept connections using a public/private key pair, this script will not be able to connect to the SSH server.

#!/usr/bin/python
###############
# MODULES
###############
import paramiko
import sys
import getpass

###################
# VARIABLES
###################
myUsername = "root"
myPassword = getpass.getpass("Enter your SSH password: ")
target_servers = ('server1' 'server2' 'server3')

################################
# FOR EACH LOOP
################################
for myServers in target_servers:
  servers = myServers.rstrip()
  ssh = paramiko.SSHClient()
  ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
  ssh.connect(server,username=myUsername,password=myPassword)

  # Enter Linux command inside the double quotes
  stdin, stdout, stderr = ssh.exec_command("")

  out = stdout.readlines()
  filtered = filter(lambda x:not '256\\nAlias' in x, out)
  print bcolors.YELLO + "Server Name: " + server + bcolors.ENDC
  print bcolors.FAIL + ''.join(filtered) + bcolors.ENDC
  ssh.close()