# phpman > info > Sys::Hostname

Sys::[Hostname(3perl)](https://www.chedong.com/phpMan.php/man/Hostname/3perl/markdown)   Perl Programmers Reference Guide   Sys::[Hostname(3perl)](https://www.chedong.com/phpMan.php/man/Hostname/3perl/markdown)

NAME
       [Sys::Hostname](https://www.chedong.com/phpMan.php/perldoc/Sys%3A%3AHostname/markdown) - Try every conceivable way to get hostname

SYNOPSIS
           use [Sys::Hostname](https://www.chedong.com/phpMan.php/perldoc/Sys%3A%3AHostname/markdown);
           $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)](https://www.chedong.com/phpMan.php/man/uname/2/markdown),
       "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 v5.34.0                      2025-07-25              Sys::[Hostname(3perl)](https://www.chedong.com/phpMan.php/man/Hostname/3perl/markdown)