usernames.py -i <infile> > <outfile>
With the input of john doe
the script will create the usernames:
john
john.
john-
john_
john@
john
johnd
john.d
john-d
john_d
john@d
john d
jdoe
j.doe
j-doe
j_doe
j@doe
j doe
johndoe
john.doe
john-doe
john_doe
john@doe
john doe
jd
j.d
j-d
j_d
j@d
j d
doe
doe.
doe-
doe_
doe@
doe
doej
doe.j
doe-j
doe_j
doe@j
doe j
djohn
d.john
d-john
d_john
d@john
d john
doejohn
doe.john
doe-john
doe_john
doe@john
doe john
dj
d.j
d-j
d_j
d@j
d j