Preface: The Project

Goals for SysAdm course

Chapter S1. The System Administrator's Tasks

• What is a System Administrator?
• The goals of a System Administrator
• Mixing roles
• Exercises
• Test
• Internet resources about this chapter

• Adding users to the system
• The file: "/etc/passwd"
• The file "/etc/profile"
• The file .bashrc
• Using the Shell
• Running your application
• The Jolly commands
• The range commands
• Sending Control sequences
• Command redirection
• The "<" and ">" operators
• The ">>" operator
• The "<<" operator
• Monitoring the users on the system
• Changing users priority in daily workload with "nice"
• Exercises
• Test
• Internet resources about this chapter

• An Introduction to Linux cron jobs
• The "date" command
• The TimeZone (TZ)
• The program calendar "cal"
• The command "at"
• The command "cron"
• The Automatic Backup
• The command "sleep"
• Exercises
• Test
• Internet resources about this chapter

• The Bourne Again Shell (bash) as a programming tool
• Internal Shell commands
• Reserved words
• Expressions in Shell Programming
• The echo command
• The set command
• Using "set -x"
• Shell variable modifiers
• The read command
• Control Structures in bash
• The conditional if-then-else statement
• The case statement
• The for statement
• The while statement
• The getopts program
• Some first examples on Shell Programming
• Interacting with Enviroment Variables
• Some Linux Enviroment Variables
• Some examples with enviroment variables
• Sed: The Strem Editor
• AWK: The Aho-Weinberger-Kerningham tool
• How to parametrize a script
• Others command Shells
• The command "test"
• The "which" command
• The command "xargs"
• The command "tput"
• The command "type"
• Exercises
• Test
• Internet resources about this chapter

• The Tcl command language
• Control structures in Tcl
• Lists in Tcl
• Arrays in Tcl
• Other important Tcl functions
• The string and append functions
• The regexp and regsub command
• The split commands
• Interactive Tcl with the Linux Enviroment
• Working with Files
• The format command
• The scan command
• Some examples in Tcl
• Mixing Tcl and C
• What is Expected language?
• Motivation
• Expect Commands
• The spawn command
• The expect command
• The interact command
• Expect Applications
• The mkpasswd program
• The passmass program
• The kibitz program
• The Graphic Interface to Commands: ExpectTk
• The 'dejagnu' project
• Conclusions
• Exercises
• Test
• Internet resources about this chapter

• The Linux Boot process
• The init program
• The inittab file
• The inittab syntax
• The telinit program
• The LILO
• Installing Multiples Linux distro
• The GRUB
• Comparing LILO and GRUB
• The SysV daemons services
• The "kill" and "killall" commands
• Adding a Linux service "myservices"
• Exercises
• Test
• Internet resources about this chapter

The structure of a Linux Kernel

The Kernel modules

A look on the Linux hierarchy

Memory management under Linux

Exercises

Test

Internet resources about this chapter

• Downloading the Linux kernel
• The kernel patch
• Patching the kernel
• Configuring the kernel
• Compiling Linux
• The 'default' kernel configuration
• The 'concept' of kernel build completed
• The boot and initrd floppies
• The /proc directory
• Exercises
• Test
• Internet resources about this chapter

• An Introduction to Kernel Internals
• What is a Kernel module ?
• Kernel dependence
• Why write a module ?
• The possible types for drivers
• A source model for a kernel driver
• Exercises
• Test
• Internet resources about this chapter

• Introduction
• Build your packages
• Create a bootdisk
• Create genhdlist
• Burn your Linux CD
• Exercises
• Test
• Internet resources about this chapter

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Appendix SC. Control Sequences and ASCII code

Appendix SE. Expect Command

Appendix SL. How to write a Linux System Administration Tool

Appendix SP. Answer to all exercises

Appendix SR. Bash Reserved Words with examples

Appendix SS. Shell Parameters

Bibliography