Appendix A. Perl Functions

This appendix contains a brief reference, organized in alphabetical order, of all the built-in functions in the Perl language. If you're looking for a function that doesn't exist, there's a good chance that someone has written a module that supports it.

Note that not all the functions in this appendix are supported by all versions of Perl. Day 18, “Perl and the Operating System,” contains some background information on which functions might not be available for Windows or the Mac OS. For the ultimate list, see the documentation that comes with your Perl port.