Provided by: perl-doc_5.22.1-9ubuntu0.9_all 

NAME
Sys::Hostname - Try every conceivable way to get hostname
SYNOPSIS
use Sys::Hostname;
$host = hostname;
DESCRIPTION
Attempts several methods of getting the system hostname and then caches the result. It tries the first
available of the C library's gethostname(), "`$Config{aphostname}`", uname(2),
"syscall(SYS_gethostname)", "`hostname`", "`uname -n`", and the file /com/host. If all that fails it
"croak"s.
All NULs, returns, and newlines are removed from the result.
AUTHOR
David Sundstrom <sunds@asictest.sc.ti.com>
Texas Instruments
XS code added by Greg Bacon <gbacon@cs.uah.edu>
perl v5.22.1 2020-10-19 Sys::Hostname(3perl)