Source code

for f in $( sed 's/[^@0-9a-zA-Z_\.-]/\n/g' < IN ); do
  echo "`echo $f &#124; grep -G  '^[0-9a-zA-Z_\.-]\+@[0-9a-zA-Z_\.-]\+\(\.[0-9a-zA-Z_\.-]\+\)\+$'`;" &#124; grep -vG '^;$' >> TMP
done
sort TMP &#124; uniq > OUT

Source code

#!/bin/sh
for f in $( sed 's/[^@0-9a-zA-Z_\.-]/\n/g' < $@ ); do 
   echo "`echo $f &#124; grep -G  '^[0-9a-zA-Z_\.-]\+@[0-9a-zA-Z_\.-]\+\(\.[0-9a-zA-Z_\.-]\+\)\+$'`;" &#124; grep -vG '^;$' >> /tmp/SORT
 done 
sort /tmp/SORT &#124; uniq > $@.sorted

Source code

import sys
import re

def grab_email(file):
    found = []
    if file != None:
        mailsrch = re.compile(r'[\w\-][\w\-\.]+@[\w\-][\w\-\.]+[a-zA-Z]{1,4}')
        for line in open(file, 'r'):
            found.extend(mailsrch.findall(line))

    # remove duplicate elements
    # borrowed from Tim Peters' algorithm on ASPN Cookbook
    u = {}
    for item in found:
        u[item] = 1

    # return list of unique email addresses
    return u.keys()

if __name__ == '__main__':
    if len(sys.argv) != 2:
        print 'usage: %s <file with email addresses>' % sys.argv[0]
        sys.exit()
    for addr in grab_email(sys.argv[1]):
        print addr

Source code

from distutils.core import setup
import py2exe

setup(console=["mailgrabber.py"])

Source code

python dist-setup.py py2exe