Shell Scripting Online Training Modules Overview

Introduction to the UNIX Operating System

• A brief history of Unix
• The Unix kernel
• The UNIX file system
• Getting started navigating the file system
• The file system structure
• Directories and files
• Pathnames
• Navigating the file system
• Exercise: Logging on to the system
• Exercise: Navigating the file system

Unix Basic Commands

• Command line syntax
• Basic file handling commands
• Directory handling commands
• Filename wildcard characters
• Exercise: Manipulating files and directories

Redirection and Pipes

• Input redirection
• Output redirection
• Pipes
• Exercise: Using redirection and pipe facilities

Introduction to The vi Editor

• Overview of the vi editor
• Basic functions
• Switching to input mode
• Other useful commands
• Exercises: Using the vi editor
• Exercise: Using more advanced vi features

Searching and Replacing Text

• Replacing text
• Using the vi editor
• Using sed for search and replace
• Searching for text with grep
• Linking files
• Exercises: Searching and Replacing Text

Recalling and Editing Commands

• Overview
• The bash shell
• The korn shell
• Exercises: Recall and Edit Commands

File Permissions and Access Control

• Users and user groups
• File access permissions
• Changing file attributes
• Switching users and user groups
• Linking files
• Exercise: Setting and access permissions

Processes

• What is a process?
• Monitoring processes
• Killing processes
• Background processes
• Job Control
• Grouping commands
• Exercise: Monitoring and controlling processes

More Basic Commands

• The wc (word count) command
• The find command
• The cut command
• The sort command
• The finger command
• Exercise: Using file handling commands

The User Environment

• Customising the .profile or .bash_profile
• Customising the .kshrc or .bashrc
• Exercise: Setting up an environment

Shell Scripting Training

Unix Command Review

• Basic Unix commands
• General commands
• File and directory handling commands
• Filename generation characters
• I/O Redirection features
• Other commands

Getting Started

• What is a shell script?
• Development guidelines
• Creating and editing shell scripts
• Naming and storing shell scripts
• Executing shell scripts
• Exercise: Write a simple shell script

Using Variables

• Environment variables
• Local variables
• Assigning values to variables
• Assessing variable values
• Using quotes
• Delimiting variable names
• Echo control sequences
• Exercise: Add variables to a script

Integer Arithmetic

• Using the expr command
• Using the (( )) notation
• Exercise: Add integer arithmetic to a shell script

Handling Run Time Data

• The read command
• Command line arguments
• Exercise: Writing a generic shell script
• Exercise: Writing an interactive shell script

Condition Execution

• The if statement
• The test command
• Other test notations
• Default and substitute variables
• Exit status codes
• Exercise: Adding validation to previous scripts

Loop Constructs

• The while loop
• The until loop
• The for loop
• The while true and until false loops
• Loop control commands
• Exercise: Enhancing the previously written scripts
• Exercise: Writing a guess-the-number game

Multi-Branch Decisions

• The case statement
• Menu driven applications
• Exercise: Developing and writing a menu system

Functions

• What is a function?
• Syntax
• Examples
• Exercise: Add a function to a script

Interrupt Handling

• Interrupt signals
• Trapping interrupts
• Exercise: Adding traps to the menu script

Additional Features and Facilities

• The exec commands
• The includes notation
• More about loops
• Arrays
• Here Documents
• Exercise: Create a here script

Unix Advanced Shell Programming

Redirection, Pipes and Filters

• Standard I/O and redirection
• Pipes
• Command separation
• Conditional execution
• Grouping Commands
• UNIX filters
• The tee command

Backup and Restore Utilities

• Archive devices
• The cpio command
• The tar command
• The dd command

Background Job Scheduling

• Starting background jobs
• Background tasks and the nohup command
• Process priorities and the nice command
• Job control
• Scheduling jobs with the at command
• Scheduling jobs with the cron command

Regular Expression Notation

• Regular expressions
• Extended regular expressions

Searching Files for Patterns

• The grep family of commands
• The grep command
• The fgrep command
• The egrep command

The Stream Editor – sed

• Introduction and command line syntax
• The sed program structure
• sed program processing
• Use sed commands
• sed addresses
• sed instructions
• Hold and get functions
• Advanced flow control

Commands for Comparing Files

• Compare two files with the cmp command
• Compare two files with the comm command
• Compare two files with the diff and sdiff commands
• Compare large files with the bdiff command

File Manipulation Commands

• The file command
• The head command
• The tail command
• The cut command
• The paste command
• The pr command
• The split and csplit commands

Identify and Translate Characters

• od – octal dump
• Use cat to display non-printing characters
• The expand and unexpand commands
• The tr command

Sorting Files

• The sort command
• Specify sort keys with -k
• Sort by column positions
• The uniq command

Introduction to the Pattern Scanning Utility – awk

• Introduction and command line syntax
• The awk program structure
• Use regular expressions
• Operators
• Simple patterns
• Extended patterns
• Comments
• Special patterns (BEGIN and END)
• Program variables
• Built-in variables
• User defined variables
• Mathematical operators
• Enhanced printing
• Handling user variables

awk Program Control Structures

• Program control structures
• The if construct
• The while and do … while constructs
• The basic for construct
• Associative array handling
• Functions
• Built in functions
• The system function
• The getline function
• User defined functions

Examples of Shell Scripts

• Logic Development:
• Shell script to print given numbers sum of all digit
• Shell script to print contains of file from given line number to next given number of lines
• Shell script to say Good morning/Afternoon/Evening as you log in to system=
• Shell script to find whether entered year is Leap or not
• Sort the given five number in ascending order (use of array)
• Command line (args) handling:
• Adding 2 nos. suppiled as command line args
• Calculating average of given numbers on command line args
• Finding out biggest number from given three nos suppiled as command line args
• Shell script to implement getopts statement.
• Basic math Calculator (case statement)
• Loops using while & for loop:
• Print nos. as 5,4,3,2,1 using while loop
• Printing the patterns using for loop.
• Arithmetic in shell scripting:
• Performing real number calculation in shell script
• Converting decimal number to hexadecimal number
• Calculating factorial of given number
• File handling:
• Shell script to determine whether given file exist or not.
• Screen handling/echo command with escape sequence code:
• Shell script to print “Hello World” message, in Bold, Blink effect, and in different colors like red, brown etc.
• Background process implementation:
• Digital clock using shell script
• User interface and Functions in shell script:
• Shell script to implements menu based system.
• System Administration:
• Getting more information about your working environment through shell script
• Shell script to gathered useful system information such as CPU, disks, Ram and your environment etc.
• Shell script to add DNS Entery to BIND Database with default Nameservers, Mail Servers (MX) and host
• Integrating awk script with shell script:
• Script to convert file names from UPPERCASE to lowercase file names or vice versa.

Job Opportunities in Shell Scripting

It’s an open fact that this is an industry where opportunities are quite plenty. If you have got the right set of skills & qualification, the jobs are waiting for you—now and in the future. To be clearly precise the whole world is facing shortage of skilled experts in this domain & most of the companies are coming forward offering whopping salary packages for the right talented experts who have successfully completed their training certification from a qualified institute. Make the most out of the rising career opportunities in the domain of Shell Scripting by availing our Sacrostek Training complete industry concentric Shell Scripting Online Training certification program

Sacrostek offer certification programs for Shell Scripting. Certificates are issues on successful completion of the course and the assessment examination. Students are requested to participate in the real-time project program to get first-hand experience on the usage and application of the Shell Scripting. The real-time projects are designed by our team of industry experts to help students get best possible exposure to the Shell Scripting and its applications.