Installer script for Apache open office 4.0 or 4.1 on ubuntu 14.04

install_apache_open_office.py

#!/usr/bin/env python
import subprocess
import optparse
import platform

#--------------------------------------------Globals-------------------------------------------------------------
install = []
uninstall = ["sudo apt-get purge openoffice*.* && sudo apt-get autoremove"]
PLATFORM = platform.system()
ARCHITECTURE = platform.architecture()[0]

#------------------------------------------Running commands------------------------------------------------------
def run_commands(cmds):
    """
    Function which run all the commands.
    """
	for cmd in cmds:
		subprocess.call(cmd, shell=True)
		
#-------------------------------------------Option parsing-------------------------------------------------------
def controller():
    """
    Function which does parsing on options received from command line and
    also prepares a list of commands that are used for installation.
    """
    global VERBOSE, install, uninstall
    
    #Create instance of OptionParser Module, included in Standard Library and add options to it.
    p = optparse.OptionParser(description='For installing Apache open office',
                                            prog='install-open-office',
                                            version='install-open-office 0.1',
                                            usage= '%prog [option]')
    p.add_option('--install','-i', action="store_true", help='installs open office')
    p.add_option('--uninstall', '-u', action="store_true", help='uninstalls open office')
    p.add_option('--Version', '-V', help='specifying version')
    p.add_option('--verbose', '-v',
                action = 'store_true',
                help='prints verbosely',
                default=False)

    #Option Handling passes correct parameter to runBash
    options, arguments = p.parse_args()
    
    if options.verbose:
        VERBOSE=True
    if options.install:
    	#----------------------------------------setting commands------------------------------------------------
		#Removing libreoffice
		INSTALL.append("sudo apt-get remove --purge libreoffice* libexttextcat-data* && sudo apt-get autoremove")
		#removing openoffice
		INSTALL.append("sudo apt-get purge openoffice*.* && sudo apt-get autoremove")

		#change to /tmp
		INSTALL.append("cd /tmp")

		#download the application
		if PLATFORM == "Linux":
			##For 4.0.1
			if options.Version == "4.0":
				if ARCHITECTURE == "32bit":
					INSTALL.append("wget http://sourceforge.net/projects/openofficeorg.mirror/files/4.0.1/binaries/en-US/Apache_OpenOffice_4.0.1_Linux_x86_install-deb_en-US.tar.gz")
				elif ARCHITECTURE == "64bit":
					INSTALL.append("wget http://sourceforge.net/projects/openofficeorg.mirror/files/4.0.1/binaries/en-US/Apache_OpenOffice_4.0.1_Linux_x86-64_install-deb_en-US.tar.gz")
			elif options.Version == "4.1":
				if PLATFORM == "Linux":
					if ARCHITECTURE == "32bit":
						INSTALL.append("wget http://sourceforge.net/projects/openofficeorg.mirror/files/4.1.1/binaries/en-US/Apache_OpenOffice_4.1.1_Linux_x86_install-deb_en-US.tar.gz")
					elif ARCHITECTURE == "64bit":
						INSTALL.append("wget http://sourceforge.net/projects/openofficeorg.mirror/files/4.1.1/binaries/en-US/Apache_OpenOffice_4.1.1_Linux_x86-64_install-deb_en-US.tar.gz")
		else:
			print "Wrong operating system detected."
		#extract
		INSTALL.append("tar -xvf Apache_OpenOffice*.tar.gz")

		#install deb
		INSTALL.append("sudo dpkg -i en-US/DEBS/*.deb")

		#install the desktop-integration
		INSTALL.append("sudo dpkg -i en-US/DEBS/desktop-integration/*.deb")

		value = run_commands(INSTALL)

    elif options.uninstall:
        value = run_commands(UNINSTALL)

    else:
        p.print_help()

#Runs all the functions
def main():
    controller()

#This idiom means the below code only runs when executed from command line
if __name__ == '__main__':
    main()