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Unix

Introduction

Contents

Local introductory documentation
The Shell
General information sources
Advanced Resources
Sources of Unix
Security
System Management
Organisations and Magazines

Unix is an operating system which in various versions (Linux, MacOS, etc) runs on many of the world's machines. It runs our centralized services and is on most of our teaching system machines. See wikipedia for a history of its development. It can be used from a command line or by using icons and windows. From this page you can find out about our Unix-based machines, look at our introductory documentation, and read about Unix elsewhere

Local introductory documentation

Introduction for New Users (a handout that all new users get)
A short Unix crib
The DPO set-up (some background information on what the machines do)
Our Central Computing System
An Introduction to the "Teaching System"
Unix from the command line, includes a list of common commands.
Customising
Unix Myths
Local frequently asked questions about files and programs.
The MDP resource disc (Linux and local applications on a disc)

The Shell

Image shellfig Whenever you login to a Unix system you are placed in a program called the shell (the "command line interpreter"). Commands can be assembled into a file to form programs called shell scripts.

Writing Shell Scripts (a talk - CUED)
Writing Shell Scripts (a handout - CUED)
Korn Shell (ksh) Programming (Philip Brown)
Linux Shell Scripting Tutorial - A Beginner's handbook
AWK programming (Philip Brown)
sed crib sheet
Text processing tools (University Computing Service's Unix Support)
The University's computing service offers a course on shell scripts. Extensive course notes are online - see Simple Shell Scripting for Scientists
Advanced Bash-Scripting Guide

General information sources

a Unix time-line
UNIX Introduction (Surrey University)
Learning Linux
Getting Started with Linux (from Linux Online)
University Computing Service's Unix Support
Automating Program Compilation - Writing Makefiles

Advanced Resources

Unix Tools (Markus Kuhn and A C Norman) - or see the slides. shell, make, Perl and LaTeX are covered.
Advanced Linux Programming (a book)
iTunes has several Linux-related podcasts - for example, there's Going Linux
Memory optimisation
Unix groups and file permissions
Unix Links and Filesystems
Unix Multi-Process Programming and Inter-Process Communications (IPC)
Fork and Exec (CUED)
Unix Signals and Forking
Introduction To Unix Signals Programming
linux shared libraries
Parsing arithmetic expressions - Bison and Flex
The Lex & Yacc page
Parallel Programming
Parallel Programming - Basic Theory For The Unwary

Sources of Unix

IBM UK
SUN
Linux - Our linux page (linux is a free Unix for PCs).
The MDP resource CD
Apple OSX

Security

Unix Security References

System Management

Unix Guru Universe

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Last image by lewing@isc.tamu.edu (Aurelio A. Heckert) under the GNU Free Documentation License