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getlogin

Perl 5 version 12.2 documentation
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getlogin

Perl functions A-Z | Perl functions by category | The 'perlfunc' manpage
  • 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 it returns the empty string, use getpwuid.

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

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