Open Source for Business

Day 1

Lesson

Description

1

Introduction

What is Linux, Logging in typing commands, logging out

Files, directories and paths, Creating Files with a text editor

Viewing files (cat,less) and Managing Files (cp,mv,rm)

Magic dot files and hidden files, Managing directories (mkdir, rmdir)

Documentation for commands (man) and Useful shell features (command-line editing, command line completion history)

2

The Unix and Linux command Line

Unix shells (bash), Command line syntax (options, arguments)

Shell variables and environment variables and Command Substitution

Using pipes to connect programmes

Useful text fillers (wc, sort, uniq, expand, head, tail, nl,tac)

Spitting files across disks (split), Using redirection to connect programs to files and redirect in  to files with append (≻≻)

3

Documentation

The unfortunate diversity of Linux documentation

Using man(1), How man pages are divided  among 'sections'

Searching for man pages (apropos, man -k), Printing man pages (man -t)

Documentation for shell built-ins (help), Using GNU info documentation (info) and Documentation under/usr/share/doc

4

Text Editing with Vi

Unix is all about text, Vi: the standard Unix editor

The concept of 'modes' in a modal editor and Vi clones, extendiond to vi

Other powerful Unix text editors and practical work learning Vi and Vim

Day 2

Lesson

Description

1

Configuration Files

Configuration files and environment variables for configuration (PATH, PSI, DISPLAY, http_proxy)

Setting and examining shell aliases and configuring the readline library (inputrc files)

2

Regular Expression Searches

Searching files wih regular expression (grep) and the concept of 'pattern making' with regular expressions

Anchor the pattern to the start of end o the line (＾, $), Match repeated patterns (*,\+, ?) and escaping special characters in regexps (\)

Matching any character (.) and matching alternative patterns (\])

Simple use of sed to 'search and replace

3

Processes and Jobs

What processes are, the properties of a process and parent processes and child processes

Job control (fg, bg, jobs), suspending processes (Ctrl+Z) and running Programmes in the background (&)

Long Lived processes (nohup) and monitoring processes (ps,pstree, top)

Killing proceses and sending signals a process (kill, killal, xkill)

Process niceness/priority (nice,renice)

4

Filesystem and Concepts and Use

The unified Unix filesystem, special file types and symbolic links (In -s)

Inodes and directory enteries, hard links and preserving links while copying and archiving and where to put things: the FHS

Day 3

Lesson

Description

1

Filesystem Security

Users and groups, the 'root' user, or superuser

Changing file ownership (chown) and changing group ownership (chgrp)

More complex ways of changing ownership (recursively, changing owner and group simultaneously) Permissions on files and permissions on directories,how permissions are applied and changing permissions (chmod)

The special 'sicky bit' mode on directories, Setgid and setuid permissions, their effect on files and directories and default permissions for new files (umask)

2

The X Window System

What X is and the role of the window managers and deskop environments

Startup and session scripts and terminal emulators (xterm, etc)

3

Advance Shell Usage

Quoting (single quotes, double quotes, blackslashes)

Combining quoting mechanisms and globbing patterns (*,?,[])

Generating filenames and other text with {} braces

4

Scheduling

Running commands at particular times (at,atq,atrm)

Scheduling commands to run repeatedly (cron)

Different ways of configuring cron (/etc/crontab, etc) and User crontabs (crontab command)