Shell Scripting Online Training

Shell Scripting Online Training:

Introduction

  • Objectives
  • Course Schedule
  • Course Introductions
  • Pre-requisites
  • Bibliography
  • Delegate Responsibilities
  • Course Summary

Review of Basics – optional

  • Files
  • Directories and Processes
  • Displaying Directories – ls
  • Getting Help – man
  • Displaying Files – cat, more
  • Simple Commands
  • Piping – using | symbol
  • Redirection – using > symbol
  • Redirection – using >> symbol
  • Redirecting Input – using < symbol
  • Redirecting Errors
  • Using /dev/null
  • Foreground Jobs
  • Background Jobs – &
  • Stopping Jobs – kill
  • Special Files – . and ..
  • The Command Prompt – PS1
  • Creating Aliases
  • Using Aliases
  • Command history
  • Command Line Edit – using Arrow Keys
  • Command Line Edit – using vi
  • Customising the Shell
  • The Home Directory – HOME
  • The Working Directory – pwd
  • Changing Directories – cd
  • Make Directory – mkdir
  • Remove Directory – rmdir
  • Interactive Copy – cp -i
  • Interactive Move – mv -i
  • Interactive Remove – rm -i
  • Removing Directories – rm -r
  • Wild Cards – File Name Generation
  • Word count – wc
  • Finding Files – find
  • Finding Text in Files – grep, sort, cut, uniq, tr
  • Changing Permissions – chmod

Shell Programming: Shell Scripting Online Training

  • Creating Shell Scripts
  • Testing the Command
  • Creating the Script File
  • Adding Execute Permissions
  • Testing the Script
  • Running the Script – time
  • Running the Script – dot
  • Running the Script – exec
  • Running the Script – ksh
  • Debugging the Script
  • Passing Parameters
  • The read Command
  • Using read in Scripts
  • Choosing the Shell
  • Tidying The Output
  • Suppressing Input – stty

Special Characters and Variables

  • Quotation Marks
  • Quoted Strings – “, ‘
  • Escape Character – *
  • Quoted Strings – `
  • Using $(…)
  • System Variables – set
  • Other Special Variables
  • User Variables
  • User Variables – unset
  • Variables in Scripts
  • Typeset Command
  • Integer Variables
  • Special Constructs

Creating Menus

  • Conditions – case
  • Creating a Menu
  • Iteration – while, until
  • Holding the Output – sleep
  • Holding the Output – dummy read
  • Ending the Script
  • Ending the Loop
  • Hidden Option – forking a shell
  • Trapping Interrupts – trap
  • More on Interrupts
  • Highlighting Text- tput
  • Positioning the Cursor – backtab b
  • Korn Shell Menu

Selection in Shell Scripting Online Training

  • Conditional Testing
  • Testing File Attributes
  • Testing File Permissions
  • Multiple Tests – Nested ifs
  • Multiple Tests – elsif
  • The NOT Condition
  • Multiple Conditions in One Test
  • Testing Strings
  • Using Square Brackets
  • Avoiding Null Input
  • Testing Numbers
  • More on case
  • Displaying Variables
  • Placing Spaces
  • Testing Commands

Iteration, Looping

  • Computations – let
  • Iteration – while, until
  • Infinite Loop
  • Iteration – for
  • More than 9 Parameters – shift

Sub-scripts and Functions

  • Local and Global Variables
  • Sub-scripts
  • Export Command
  • Exit Status
  • Aliases
  • Functions
  • Useful Functions
  • Return Status
  • Manipulating Functions
  • Functions in Scripts

Advanced Commands

  • Debugging – set
  • Setting – set
  • Merging Files – join
  • Merging Files – paste, basename and dirname
  • Job Control – jobs
  • Regular Expressions
  • Global Regular Expression Printer – grep
  • Expression grep – egrep
  • Fast grep – fgrep
  • Computations – expr
  • Computations – bc, eval Command,
  • Argument Processing
  • getopts Command
  • Using Arrays

Advanced Edit – vi & sed

  • vi – Mapping Key Combinations
  • Mapping Control Keys
  • Using Abbreviations
  • Editing Many Files
  • Regular Expressions
  • Global Insert
  • Here document,
  • Batch Stream Editor – sed, sed delete, -d, sed print, -p, sed suppress, -n, sed quit, -q, sed file, -f, sed Multiple Input, sed
  • Find and Replace
  • sed Example

Text File Processing – awk

  • The awk Programming Tool
  • Pattern Matching
  • Regular Expressions
  • Comparison Patterns
  • Compound Patterns
  • Range Patterns
  • Special Patterns
  • Built-in Functions
  • Troubleshooting awk Scripts
  • Passing Parameters
  • Using Contains
  • printf Function
  • Computations
  • Functions
  • substr
  • length
  • Action Statements
  • Control Flow Statements
  • Arrays
  • Arrays with for Loops
  • awk Examples