Sys::Hostname(3perl) Perl Programmers Reference Guide Sys::Hostname(3perl)

Sys::Hostname - Try every conceivable way to get hostname

use Sys::Hostname;
$host = hostname;

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.

David Sundstrom <>

Texas Instruments

XS code added by Greg Bacon <>

2022-12-12 perl v5.36.0