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# exit

Perl 5 version 12.2 documentation
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# exit

Perl functions A-Z | Perl functions by category | The 'perlfunc' manpage

- exit EXPR

- exit

  Evaluates EXPR and exits immediately with that value. Example:

          $ans = <STDIN>;    exit 0 if $ans =~ /^[Xx]/;

  See also `die`. If EXPR is omitted, exits with `0` status. The only universally recognized values for EXPR are `0` for success and `1` for error; other values are subject to interpretation depending on the environment in which the Perl program is running. For example, exiting 69 (EX_UNAVAILABLE) from a sendmail incoming-mail filter will cause the mailer to return the item undelivered, but that's not true everywhere.

  Don't use `exit` to abort a subroutine if there's any chance that someone might want to trap whatever error happened. Use `die` instead, which can be trapped by an `eval`.

  The exit() function does not always exit immediately. It calls any defined `END` routines first, but these `END` routines may not themselves abort the exit. Likewise any object destructors that need to be called are called before the real exit. If this is a problem, you can call `POSIX:_exit($status)` to avoid END and destructor processing. See perlmod for details.