exit(3) User Contributed Perl Documentation exit(3)

# [NAME](#NAME)

Tk::exit - End the application

# [SYNOPSIS](#SYNOPSIS)

```
    use Tk qw(exit);
    ...
    B<exit>?(I<returnCode>)?;
```

# [DESCRIPTION](#DESCRIPTION)

Terminate the process, returning *returnCode* to the system as the exit status. If *returnCode* isn't specified then it defaults to 0.

If calling "exit" from code invoked via a Tk callback then this Tk version of "exit" cleans up more reliably than using the perl "exit".

# [CAVEATS](#CAVEATS)

Using "exit" from a forked process will terminate both the child process **and** the parent process. As "Tk::exit" is imported by default one should use "CORE::exit" in the forked process instead.

# [KEYWORDS](#KEYWORDS)

exit, process

2026-08-31 perl v5.44.0

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Document: Tk::exit(3pm) from perl-tk 804.036-r11 (Chainguard OS)
Source: https://github.com/eserte/perl-tk