Korn Shell and Bash Shell Programming Course
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Registration: self-paced from $60 or live for $2990
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Korn Shell and Bash Shell Programming Course

Course Code: hsts-c42

What is included in this course

You will learn:



Course Description
This hands-on Korn and Bash Shell scripting course 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 course 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.


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

Related Training and Courses

- PHP and MySQL Coding
- SQL Programming and Database Management
- Linux System Administration
- PHP Programming Language
- Introduction to Linux and Shell programming

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.

Corporate and Enterprise Training

Our live courses are also offered via our enterprise training program which comes with:

Feel free to contact us by email or phone to discuss your training needs and get a quote.

Overall Info About our Live Classes

Highlights

Enrollment Fee

In-person in DC or live online for $2990 per course

Course Session Dates

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

Locations

Time

Software Versions

Our classes are taught on the most current version of software whenever possible. To request a specific version, please Contact Us or call us at 240-200-6131

Course 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

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
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