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starting program script descriptions for setuid scripts
which allow for adding and deleting users

    1: #!/usr/bin/perl
    2: #
    3: # lcuseradd
    4: #
    5: # Scott Harrison
    6: # October 27, 2000
    7: 
    8: use strict;
    9: 
   10: # This script is a setuid script that should
   11: # be run by user 'www'.  It creates a /home/USERNAME directory
   12: # as well as a /home/USERNAME/public_html directory.
   13: # It adds user entries to
   14: # /etc/passwd and /etc/groups.
   15: # Passwords are set with lcpasswd
   16: 
   17: # Standard input usage
   18: # First line is USERNAME
   19: # Second line is PASSWORD
   20: 
   21: # Command-line arguments [USERNAME] [PASSWORD]
   22: # Yes, but be very careful here (don't pass shell commands)
   23: # and this is only supported to allow perl-system calls.
   24: 
   25: # Security
   26: $ENV{'PATH'}=""; # Nullify path information.
   27: $ENV{'BASH_ENV'}=""; # Nullify shell environment information.
   28: