AppConfig::Sys(3) User Contributed Perl Documentation AppConfig::Sys(3)

# [NAME](#NAME)

AppConfig::Sys - Perl5 module defining platform-specific information and methods for other AppConfig::* modules.

# [SYNOPSIS](#SYNOPSIS)

```
    use AppConfig::Sys;
    my $sys = AppConfig::Sys->new();
    @fields = $sys->getpwuid($userid);
    @fields = $sys->getpwnam($username);
```

# [OVERVIEW](#OVERVIEW)

AppConfig::Sys is a Perl5 module provides platform-specific information and operations as required by other AppConfig::* modules.

AppConfig::Sys is distributed as part of the AppConfig bundle.

# [DESCRIPTION](#DESCRIPTION)

## [USING THE AppConfig::Sys MODULE](#USING_THE_AppConfig::Sys_MODULE)

To import and use the AppConfig::Sys module the following line should appear in your Perl script:

```
     use AppConfig::Sys;
```

AppConfig::Sys is implemented using object-oriented methods. A new AppConfig::Sys object is created and initialised using the AppConfig::Sys->**new()** method. This returns a reference to a new AppConfig::Sys object.

```
    my $sys = AppConfig::Sys->new();
```

This will attempt to detect your operating system and create a reference to a new AppConfig::Sys object that is applicable to your platform. You may explicitly specify an operating system name to override this automatic detection:

```
    $unix_sys = AppConfig::Sys->new("Unix");
```

Alternatively, the package variable $AppConfig::Sys::OS can be set to an operating system name. The valid operating system names are: Win32, VMS, Mac, OS2 and Unix. They are not case-specific.

## [AppConfig::Sys METHODS](#AppConfig::Sys_METHODS)

AppConfig::Sys defines the following methods:

[**getpwnam()**](#getpwnam%28%29)

Calls the system function **getpwnam()** if available and returns the result. Returns undef if not available. The **can\_getpwnam()** method can be called to determine if this function is available.

[**getpwuid()**](#getpwuid%28%29)

Calls the system function **getpwuid()** if available and returns the result. Returns undef if not available. The **can\_getpwuid()** method can be called to determine if this function is available.

# [AUTHOR](#AUTHOR)

Andy Wardley, <abw@wardley.org>

# [COPYRIGHT](#COPYRIGHT)

Copyright (C) 1997-2007 Andy Wardley. All Rights Reserved.

Copyright (C) 1997,1998 Canon Research Centre Europe Ltd.

This module is free software; you can redistribute it and/or modify it under the term of the Perl Artistic License.

# [SEE ALSO](#SEE_ALSO)

AppConfig, AppConfig::File

2026-10-26 perl v5.44.0

---

Document: AppConfig::Sys(3pm) from perl-appconfig 1.71-r6 (Chainguard OS)
Source: https://cpan.metacpan.org/authors/id/N/NE/NEILB/AppConfig-1.71.tar.gz