Convert 2 (Man Page) to 3 (Man Page)

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 3 file extension refers to Unix Section 3 manual pages, which document library functions in Unix-based systems. These manual pages, or man pages, provide detailed information about C library functions, excluding system call wrappers. Introduced as part of the Unix documentation system, they help users understand how to use various library functions effectively. You can view these files using the "man" utility or any text editor.