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g33kyrash/username_checker.py

Created April 22, 2016 13:10
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  1. g33kyrash created this gist Apr 22, 2016.
    22 changes: 22 additions & 0 deletions username_checker.py
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,22 @@
    import re, sys

    try:
    f = open("/etc/passwd",'r')
    except:
    print "\nCan't open the file!\n"
    sys.exit(0)

    #enter your username here
    username = "rash"
    k=0

    for lines in f.readlines():
    match = re.search(username, lines)
    if match:
    k=1
    print match.group() + " exists."
    break

    if(k==0):
    print username + " does not exist!"