File Processing using AWK & SED | Step by Step Shell Scripts

About File Processing using AWK & SED | Step by Step Shell Scripts

AWK & SED

Many UNIX utilities generates rows and columns  information. AWK is an excellent tool for processing these rows and columns, and is easier to use AWK than most conventional programming languages. It can be considered to be a pseudo-C interpreter, as it understands the same arithmetic operators as C.

AWK also has string manipulation functions, so it can search for particular strings and modify the output. AWK also has associative arrays, which are incredible useful, and is a feature most computing languages lack. Associative arrays can make a complex problem a trivial exercises

AWK Coverage   Basic to Advance AWK

Environment Setup with Test Data Setup

Basic Operations-Fetch One or Multiple Columns Data (With Exercise)

Basic Operations-Fetch One or Multiple Columns Data with Separator

Conditionally Fetch Data using Logical AND and Logical OR

Condition Handling with AWK Commands

AWK Looping & Blocks

AWK Blocks

Save AWK Results to the file

SED Coverage

SED Introduction

Display one or Few lines in Output

Display Data by Search conditions

Skip Data to display in output

Find and Replace Data

Search |  Insert | Update and Delete Data

Search Data using GREP commands

Search Data in one or Multiple Files

Search Data in All files

Search data with case or ignoring case

Search data with surrounding words

Advance Search Condition

Cut Commands

Cut Columns

Cut Range of Columns

Cut by characters

Shell Scripting

Shell Scripting basics

Working with System and User Variables

Functions

Looping

Condition Handling