Nokia Firewall, VPN, and IPSO Configuration Guide

Appendix A. UNIX Basics

Solutions in this chapter:

• Understanding Files and Directories
• Understanding Users and Groups
• Using the Shell and Basic Shell Utilities
• Using vi

Introduction

For readers who have little or no experience with UNIX, this appendix explains the basic concepts and commands to quickly get you up to speed with Nokia's (or any UNIX, for that matter) command-line interface. This foundation will also help you when you read some of the chapters in this book.

Here you will learn the basic form of the UNIX file system, including how files and directories are a part of that system. We make our examples Nokia-specific where appropriate. You will also learn about the UNIX user and group permission concept and the commands that manipulate ...