Convert 2 (Man Page) to DBK

A 2 file extension refers to a Unix manual page (man page) that documents a specific system call. These files are part of the Section 2 of the Unix manual, which is dedicated to system calls. Each 2 file is named after the system call it describes, such as "link.2" for the "link" system call. These files are intended to be viewed using the "man" utility in Unix-based systems. Historically, they have been a fundamental part of Unix documentation, providing detailed information on how to use system calls, their return values, possible errors, and related manual pages.

The DBK file extension stands for DocBook Technical Document, a semantic markup language used for creating technical documentation in a format-neutral way. Initially developed for computer hardware and software documentation, it allows content to be easily converted into various formats like HTML and PDF. DocBook has become a standard for technical documentation due to its flexibility and open-source nature.