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Managing the system is very important activity for any organization business. Similarly all application require simple interface to use and big real time solutions require 24 hour support for lot of different tasks. This requires systematic way of doing the tasks to manage the systems and solutions efficiently. Big businesses require continuous improvement to manage these tasks efficiently. Linux and Unix system provides lot of commands to do all but at the same time it require automate as much possible to manage the operational tasks efficiently.
Shell scripting provides wonderful way to use the Linux and Unix system to automate the complex tasks in programmatic way. The shell script helps in lot of tasks - managing system, timely operations, production support for big solutions, release and update, interfaces for application. It provides all in a simple manner and easy to understand for any developer/admin, so that future maintenance is also easy. The course covers following topics-
This course explains different features of shell scripting and shows simple implementation. The course develops the shell scripting understanding in steps by providing explanation and immediate implementation.
I have used Fedora on Oracle Virtual Box as environment but it can be done on any Linux and Unix system with shell and small changes as applicable for that shell.
This course will be expanded soon, some of the topics that will be added are-
This course will be updated with adding new topics and existing topics will be provided in detail to have good understanding of Shell Programming to build the technical strength and shape your career.
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|Section 1: Introduction to Shell Scripting|
Introduction to Shell Script
A Simple Shell ScriptPreview
Demo of Variable
Single Quote, Double Quote, Backslash
|Section 2: Decisions|
Testing Integer Comparison
Testing Logical Negation
Testing Logical OR (-o)
Testing Logical AND (-a)
&& and || for Combined Test
Do Nothing or Null command
if ...then...else StatementPreview
Another Syntax for Nested if (if...elif)
Double Square Brackets
|Section 3: Loops|
Reading a File
Another Syntax of for Command
Redirection of Loop Output
|Section 4: Command Line Parameters|
Command Line Arguments
|Section 5: Functions|
What is Function
Getting Output From Function
|Section 6: Array|
Array and Function
|Section 7: SED|
Introduction to sed
-e option (multiple commands), -f option (commands in file)
s command, Substitute command
Address for multiple commands
d command, Delete command
|Section 8: AWK|
Introduction to awk
-f Option, program in file
-F Option, field separator
Founder and Managing Director of Sonebhadra Technologies which provides software solutions and training.
Author of best selling book on C language "C In Depth" and on Data Structures "Data Structures Through C In Depth".
C In Depth S K Srivastava, Deepali Srivastava BPB Publications Sold 110,000+ copies
Data Structures Through C In Depth S K Srivastava, Deepali Srivastava BPB Publications Sold 60,000+ copies
Industry experience of 16+ years. Worked on system side includes Driver, Compiler, Linker, Debugger, IDE, System Utilities, System Management. Worked on architecture and design of various products and tools.