lextoumbourou

the_str = """Four score and seven years ago our fathers brought forth upon this \
continent a new nation, conceived in liberty and dedicated to the \
proposition that all men are created equal..."""

def word_wrap(the_str, chars_per_line):
    '''
    Returns formatted string based on number of characters per line
    '''
    iterator,space_pos,line_count = 0,0,0
    output = the_str

lextoumbourou

lex@server:~> python
Python 2.6.5 (r265:79063, Apr 16 2010, 13:09:56)
[GCC 4.4.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import django
>>> django.get_version()
'1.4'

lextoumbourou

- hosts: all
  sudo: yes
  vars:
      cap_file: packet_capture_{{ ansible_hostname }}_{{ ansible_date_time['epoch'] }}.cap
 
  tasks:
    - name: start tcpdump
      command: /usr/sbin/tcpdump -i eth0 -s 0 -w /tmp/${cap_file}
      async: 60
      poll: 0

lextoumbourou

from os import fork
from time import sleep

# Fork the process
pid = fork()

if pid == 0: # We're in the child process
    print "Child process up in this."
else: # We're in the parent process
    print "Parent here, I just created child", pid

lextoumbourou

> python fork.py
Parent here, I just created child 19478
Child process up in this.

lextoumbourou

from os import fork, getppid
from time import sleep

pid = fork()

if pid == 0: # We're in the child process
    print "Child process up in this."
    print "My parent is", getppid()
else:
    print "Parent here, I just created child", pid

lextoumbourou

> python fork_ppid.py
Parent here, I just created child 19741
Child process up in this.
My parent is 19740

lextoumbourou

from os import fork, getppid
from time import sleep

pid = fork()

if pid == 0:
    print "I'm about to become an orphan!"
    for _ in range(3):
        sleep(1)
        print "My parent is", getppid()

lextoumbourou

> python fork_orphan.py
Parent here, I just created child 19683
Child process up in this.
Right now, my parent is 19682
> Right now, my parent is 1
Right now, my parent is 1

lextoumbourou

from os import fork, getppid, wait
from sys import exit
from time import sleep

pid = fork()

if pid == 0:
    print "Hope my parent doesn't forget me this time!"
    for _ in range(3):
        sleep(1)