This book excerpt is from chapter 1 of The Art of UNIX Programming by Eric S. Raymond, ISBN 0131429019, copyright 2004. All rights reserved. This part of chapter 1 ...

For most Unix users, symbolic links are obvious and natural — a means to make connections that span file systems and avoid the need to keep duplicates of files in multiple file system locations.

A terminal is an application on Unix-based operating systems that provides a command-line interface (or CLI), so you can interact with the operating system’s shell and access/control its different ...