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-- Perl 5.10.0 documentation --
getlogin
  • getlogin

    This implements the C library function of the same name, which on most systems returns the current login from /etc/utmp, if any. If null, use getpwuid.

        $login = getlogin || getpwuid($<) || "Kilroy";

    Do not consider getlogin for authentication: it is not as secure as getpwuid.