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Korn Shell and Bash Shell Programming

Software Skills Training, Inc.
Training overview
Training type: Classroom / Public
Next start date: 11/28/2018 - Minneapolis
Start dates
Cedar Rapids
11/28/2018  
1/30/2019  
Chicago
11/28/2018  
1/30/2019  
Des Moines
11/28/2018  
1/30/2019  

Course description

Course description

Korn Shell and Bash Shell Programming

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.

Who should attend?

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.

Training Course Content

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

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

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

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

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

Advanced I/O with Streams

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

String Manipulation

  • String Comparison
  • String Relations
  • Concatenation
  • Substring Manipulations
  • Wildcards and Pattern Matching

Security

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

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

Performance and Porting Issues

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

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

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

Functions

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

Compound Commands

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

Costs

The cost of this training course is 1795 USD per delegate.

About supplier

Software Skills Training, Inc. (SST) is a leading provider of task-oriented training courses for IT professionals. Whether you attend in person, remotely or via on-demand streaming, our task-based training philosophy is focused on saving you time and assuring that you...


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