Korn Shell and Bash Shell Programming

Workshop Code: hsts-w23

What Is Included in this Live Workshop

You will learn:

How to write and run shell scripts
Using conditional constructs to control script execution
Manipulating strings
Command-line processing
Using regular expressions
String processing utilities: sed,grep and awk
Counting words, lines and characters
Working with compression utilities
Writing functions
Managing processes
Using the ksh and bash commands
Working with UNIX I/O streams

Workshop Description
This hands-on Korn and Bash Shell scripting workshop provides a comprehensive introduction to writing Korn and Bash shell scripts. Besides covering fundamental syntax for program flow control, variable assignment and substitution, I/O control, and mathematical expressions, it emphasizes the powerful features of these shells, including built-in string operators, variable typesetting/conversion, functions, and coprocess communication and control. The creative use of standard UNIX and Linux utilities within scripts to solve problems is stressed throughout. The workshop is designed for the administrators and programmers who are developing, testing, or integrating software on UNIX or Linux, as well as for advanced UNIX or Linux users. Both the commonalities and differences between the Korn and Bash shells are examined, and students will have the opportunity to learn from examples coded in both shells. Comprehensive hands on exercises are integrated throughout to reinforce learning and develop real competency.

Workshop Prerequisites
Familiarity with UNIX file system and commands. Students who are not familiar with UNIX file system and commands should register for the workshop UNIX/Linux Fundamentals.

Related Training and Courses

- PHP and MySQL Coding
- SQL Programming and DB Management
- Linux System Administration
- PHP Programming Language
- Learn the Fundamentals of UNIX and Linux

Self-paced training

This course is available in a self-paced video format starting at $60. Click here to learn more and register. For complete self-paced system admin training, visit our System Admin- Complete Training Bundle page.

Overall Info About our Workshops

Highlights

6 hour hands-on training led by experienced instructors
Digital workshop contents

Enrollment Fee

Online live starts from $390

Workshop Session Dates

Our workshops are offered all year around. Upon registration we enroll you to the earliest available class but you can reschedule it free of charge. Location

Online or in our DC office at 3165 Mt Pleasant St NW

Time

Saturdays 9AM-4:30PM (1 hour Lunch)
Weekdays 6:30PM-9:30 PM

Workshop Outline

Topics Covered in this Course.

1- Introduction

Comparing Popular Shells
Korn Shell Compatibility for Bash
Korn and Bash Shell Advantages
Korn and Bash Shell Disadvantages
Versions of ksh and bash
Shell Command Syntax
Comments
Continuing a Command on Multiple Lines
Special Characters
Pattern Matching
Complex Pattern Combinations
Tilde Expansion

2- Process Management

Process Priority
Background Jobs
Signals
Traps
DEBUG and EXIT
ksh Co-Processing
bash Co-Processing
Pausing
Time and Date
Scheduling Execution
Run Commands Later
Aliases
How the Shell Finds Commands
Command History and Editing

3- Writing Scripts

Shell Programming Language
Reserved Words
How to Write and Run Scripts
Debugging
Data Types
Using Variables
The typeset Command
Constants
Special Predefined Variables
Printing to the Screen (echo, print)
The printf Command
Accepting Input with ksh
Accepting Input with bash
Arithmetic Operators
Floating-Point Numbers
Bitwise Operators
Grouping Operations
Binary, Octal, and Hexadecimal
Indexed Arrays
Quoting
Command Substitution

4- Advanced Customization of the Shell Environment

Command Line Options
The set command
Parents and Children
Inheritance
Exporting
Dot Scripts
Startup Scripts
Environment Variables
Setting Prompts in ksh and bash

5- Programming Logic

Conditional Expressions
Testing Strings
Testing Options
Numeric Conditions
Testing Completion Status
Truth in Korn and Bash Shells
The case Statement
Loops: while and until
The for Loop
Menus and the select Statement
Redirection and Loops
When to Use Different Constructs

6- Advanced I/O with Streams

Redirection Review
Opening Additional Streams
Redirection Operators
Inheriting and Duplicating Streams
Caution with exec
here Documents

The following topics may be included at the discretion of your instructor.

7- String Manipulation

String Comparison
String Relations
Concatenation
Substring Manipulations
Wildcards and Pattern Matching

8- Security

Process Ownership
suid and sgid
Restricted Shells
Other Security Features
The newgrp Command
Statement blocks
case Statement

9- Command Line Processing

Getting Data Into Scripts
Manipulating Positional Parameters (set, sort, shift)
Analyzing Switches with getopts
Options
Reserved Variables (OPTARG, OPTIND, IFS)
Setting Default Values

10- Performance and Porting Issues

Improving the Performance of Scripts
Timing Commands and Scripts
System Resources
Setting Limits
Portability Issues

11- Overview of File Manipulation Utilities

Editing a File from a Script
Scripting with ed or sed
UNIX and Linux Utilities to Manipulate Files
Regular Expressions
grep and egrep
The Stream Editor sed
Sorting in Scripts
Generating Reports with awk
Splitting Large Files
Counting Words, Lines, and Characters
Transforming File Contents
Extracting Text Strings

12- Additional File Processing Commands

Examining and Comparing Files
Reporting Differences Between Files
Comparing Files of Any Format
Displaying Data in Octal and Hex
Compressing Data
Converting File Formats

13- Functions

Writing Functions
Returning Value from Functions
Returning String Output
Local and Global Variables
Defining Functions
ksh Autoload Functions

14- Compound Commands

Pipelines
Command Lists
And and Or Lists
Background Jobs
Command Grouping
I/O Redirection

Self-paced registration
Registration: self-paced from $60 or live online from $390

Pick your class type

Discount or coupon code: Total: $