Shell Programming

Shell Programming Track

Shell Programming has been a identified as one of the basic skill set acquired by any of the Unix/Linux System administrator, as automation of task reduce human effort and mistake done by them . We also undertake PHP and Perl Programming to cover more wider range in integration of Unix based concept into online and reporting fundamentals.

Basic of UNIX & Help Command

Basic Script Elements 1(Input,Output)

Basic Script Elements 2(Control Structures)

Shells Simple Branching With if

Types of Unix Shells Short Form of if

Advantages of Shell Scripts Multiple Branch with case

Bash Basics Iterations and Loops

Initialization Files Looping with while and until

Login Shells, Non - Login Shells Processing a List with for

Aliases, Variables Exiting From a Loops

Working with Variables

Ixtietirnagti ofrno mwi tthh eco Cnutirnreunet Loop

Important Internal Bash Variables Exiting from the Loop with break

Command History

Input and Output Channels

Advanced Scripting Techniques

Redirection to Files Reading input with read

The here Operator Shell Functions

Feeding Output to Another Process Reading Options with getopts

Duplicating the Output with tee Signal Handling with trap

Types of Commands Implementing Simple Menus with select

Quoting Dialog Boxes with dialog

Substitution and Expansion Yes/No Box(yesno)

Variable Substitution Message Box(msgbox)

File name Expansion(File Globbing) Input Box(input box)

Command & Arithmetic Substitution Text Box(text box)

Command-Line Interpretation Menu Box(menu)

Command Separators Check List Box(checklist)

Program Flow Charts

General Considerations

Useful utilities for Shell Scripts

Producing Output From a Script cat, cut, date, grep, egrep, sed, test, tr, awk

Reading User Input

Special Variable Substitution Operators for Bash

Simple Operation with Variables

Debugging Shell Scripts Basic Strings Operation

Arithmetic Operations

Sample Scripts

Regular Expressions

Perl Scripting

Introduction to Perl

Basic Data Types

Operators in Perl

Lists and Array Variables

More Control Structures

Reading from and Writing to Files

Associative Arrays

Using Subroutines

Pattern Matching

References in Perl 5

Database Connectivity Using Perl

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