Linux Shell Scripting training course

Overview
Objectives, Schedule, Introductions, Pre-requisites, Responsibilities

Linux Revision
Objectives, Customising the Shell, . - dot Command, Getting Help, Command
History, Command Completion, Piping - using | symbol, Redirection - using >
symbol, Redirection - using >> symbol, Redirection of Errors - using 2> symbol,
Wildcards - File Name Generation, Wildcards - using *, Wildcards - using ?,
Wildcards - using [ ], Extended Globbing, Vi and Vim Editors, Using vim,
Command Mode - Moving the Cursor, Setting Options, Input/Replace Mode –
Inserting/Changing Text, Deleting Text, Other commands, Command-line Mode
– Saving/Exiting, Mapping Keys, Saving Settings, Cut and Paste Text - delete
and put, Copying Text - yank and put, Comparing Files - cmp, diff, sdiff, vimdiff,
Regular Expressions, Global Search Commands, Line Addresses, Global
Substitution, Replacing Many Characters, Global Printing and Deleting, Why use
vim?, Advanced Commands, find - Finding Files, More on Redirection,
Redirecting Errors, Finding Multiple Files, Find and Execute Command, xargs -
Passing Filenames, Foreground Jobs, Background Jobs - &, kill - Stopping Jobs,
cut - Cropping Text, jobs - Job Control, Scheduling Jobs, Crontab Command,
mail - Reading Mail, grep - Finding Text in Files, grep - Using Regular
Expressions, egrep - Expression grep, Using Filters, More Regular Expressions,
Regular Expression Examples, Permissions - File and Directory, Permissions -
Evaluating, chmod - Changing Permissions, chmod – Octal Numbers, SUID Bit,
umask - Default File Permissions, umask - Changing Default Permissions

Shell Programming
Objectives, Creating Shell Scripts, Testing the Command, Creating the Script
File, Testing the Script, Adding Execute Permissions, The PATH Variable, Login
Files, . - dot Command, Passing Parameters, read Command, read in Scripts,
Tidying The Output, Choosing the Shell, Debugging the Script

Special Characters and Variables
Objectives, Quotation Marks, Quotes - Double, Single, Quotes - Single, Escape
Character, Quotes - Back, Using $(…), Variables - System, Variables - Special,
Variables - User, Variables - unset, Variables - declare, Variables in Scripts,
Variables - Local, Variables - Global, Variable Constructs - { }, Brackets, Regular
Expressions - ( ), { } and [ ], Command Substitution - ( ), Sub-shells - ( ) and { },
Brace Expansion - { }, Other Variable Constructs - { }

Selection
Objectives, if - Conditional Testing, if - File Attributes, if - Using Test, if - Single
Square Brackets [ ], If - Logical Constructs [[ ]], if - Multiple Tests, elif, if - NOT
Condition, if - Multiple Tests, AND and OR, if - Multiple Tests, Nested, if - Testing
Numbers, if - Testing Numbers with (( )), if - Testing Strings, if – Which Construct
To Use?, Placing Spaces, Read Command, case - Testing Names, Input
validation, If – Regular Expressions, if - Testing Commands, Using Variables

Iteration, Looping
Objectives, let - Computations, () - Computations, expr - Computations, while,
until - Iteration, Infinite Loop, for - Iteration, Sequence of Numbers, shift - Moving
Parameters, while - Reading a File, while - With a Pipe, for - Iteration using $*,
for - at the Command Line, Creating Menus, Objectives, case - Condition Test

Menu Creation
while, until - Iteration, sleep - Holding the Output, read - Holding the Output, exit
- Ending the Script, break - Ending the Loop, Hidden Option - Forking a shell,
trap - Interrupts, trap - Continue, tput - Highlighting Text, Positioning the Cursor -
backtab \b, exec - Running the Script, Select Shell Menu

Arrays, Sub-scripts and Functions
Objectives, Using Arrays, Quoted Strings, Sub-scripts, Export Command, Exit
Status, Functions, Creating Functions, Listing Functions, Example Function,
Useful Functions, Functions in Scripts, Return Status, Summary

Appendices
Sed Utility
Objectives, sed - Batch Stream Editor, sed - Delete, -d, sed - Regular
Expressions, sed - Print, -p, sed - Suppress, -n, sed - Multiple Input, sed – Text
Substitutions, sed - Extracting Lines, sed – Updating the File, -i, sed - Multiple
Input, sed - File Input, -f, sed - Quit, -q, sed - Example Script

Awk Utility
Objectives, awk Programming Tool, awk - Pattern Matching, awk - Regular
Expressions, awk - Delimiter, awk - Contains, awk - Range Patterns, awk -
Comparison Patterns, awk - Compound Patterns, awk - Scripts, awk -
Troubleshooting Scripts, awk - Built-in Functions, awk - Passing Parameters,
awk - Using Contains, awk - Printf Function, awk - Computations, awk -
Shortcuts, awk - Functions, substr, length, Self Study, awk - Action Statements,
awk - Control Flow Statements, awk - Arrays, awk - Arrays with for Loops, awk -

Advanced Commands
Objectives, eval Command, More on eval, Passing Arguments, Validating
Arguments, getopts Command, getopts Example, Debugging the Script

Handouts
Main Commands, Get By In vim