---
name: "File::ChangeNotify"
section: "3pm"
platform: "linux"
package: "libfile-changenotify-perl"
version: "0.31-2"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/File::ChangeNotify"
---

# File::ChangeNotify(3pm)

Watch for changes to files, cross-platform style

## NAME

File::ChangeNotify - Watch for changes to files, cross-platform style

## VERSION

version 0.31

## SYNOPSIS

```
    use File::ChangeNotify;
    my $watcher =
        File::ChangeNotify->instantiate_watcher
            ( directories => [ '/my/path', '/my/other' ],
              filter      => qr/\.(?:pm|conf|yml)$/,
            );
    if ( my @events = $watcher->new_events ) { ... }
    # blocking
    while ( my @events = $watcher->wait_for_events ) { ... }
```

## DESCRIPTION

This module provides an API for creating a File::ChangeNotify::Watcher subclass that will work on your platform.

Most of the documentation for this distro is in File::ChangeNotify::Watcher.

## METHODS

This class provides the following methods:

### File::ChangeNotify-\>instantiate\_watcher(...)

This method looks at each available subclass of File::ChangeNotify::Watcher and instantiates the first one it can load, using the arguments you provided.

It always tries to use the File::ChangeNotify::Watcher::Default class last, on the assumption that any other class that is available is a better option.

### File::ChangeNotify-\>usable\_classes

Returns a list of all the loadable File::ChangeNotify::Watcher subclasses except for File::ChangeNotify::Watcher::Default, which is always usable.

## SUPPORT

Bugs may be submitted at \<http://rt.cpan.org/Public/Dist/Display.html?Name=File-ChangeNotify\> or via email to bug-file-changenotify@rt.cpan.org \<mailto:bug-file-changenotify@rt.cpan.org\>.

I am also usually active on IRC as 'autarch' on `"irc://irc.perl.org"`.

## SOURCE

The source code repository for File-ChangeNotify can be found at \<https://github.com/houseabsolute/File-ChangeNotify\>.

## DONATIONS

If you'd like to thank me for the work I've done on this module, please consider making a "donation" to me via PayPal. I spend a lot of free time creating free software, and would appreciate any support you'd care to offer.

Please note that **I am not suggesting that you must do this** in order for me to continue working on this particular software. I will continue to do so, inasmuch as I have in the past, for as long as it interests me.

Similarly, a donation made in this way will probably not make me work on this software much more, unless I get so many donations that I can consider working on free software full time (let's all have a chuckle at that together).

To donate, log into PayPal and send money to autarch@urth.org, or use the button at \<http://www.urth.org/~autarch/fs-donation.html\>.

## AUTHOR

Dave Rolsky \<autarch@urth.org\>

## CONTRIBUTORS

- •

  Aaron Crane \<arc@cpan.org\>

- •

  H. Merijn Branch \<h.m.brand@xs4all.nl\>

- •

  Karen Etheridge \<ether@cpan.org\>

## COPYRIGHT AND LICENSE

This software is Copyright (c) 2009 - 2019 by Dave Rolsky.

This is free software, licensed under:

```
  The Artistic License 2.0 (GPL Compatible)
```

The full text of the license can be found in the *LICENSE* file included with this distribution.