It is found that in any Linux/Unix based Operating Systems it is good to understand fork and vfork system calls, how they behave, how we… Read More »Learn and use fork(), vfork(), wait() and exec() system calls across Linux Systems
Function is a reusable block of code. Often we put repeated code in a function and call that function from various places. Library is a… Read More »How to define and use functions in Linux Shell Script
In this tutorial on Linux bash shell scripting, we are going to learn how to compare numbers, strings and files in shell script using if… Read More »How to Compare Numbers and Strings in Linux Shell Script
Overview : Command line arguments (also known as positional parameters) are the arguments specified at the command prompt with a command or script to be… Read More »Command Line Arguments in Linux Shell Scripting
In most of the programming languages debugger tool is available for debugging. A debugger is a tool that can run a program or script that… Read More »Debugging Shell Scripts in Linux
Q:1 What is Shell Script and why it is required ? Ans: A Shell Script is a text file that contains one or more commands.… Read More »25 Linux Shell Scripting Interview Questions and Answers
Every process in Linux is provided with three open files( usually called file descriptor). These files are the standard input, output and error files. By… Read More »Working with Standard Input, Output and Errors in Linux
In Bourne Shell if statement checks whether a condition is true or not. If so , the shell executes the block of code associated with… Read More »How to check Conditions with if statement in shell Scripting
In every programming language variables plays an important role , in Linux shell scripting we are using two types of variables : System Defined Variables… Read More »How to Use Variables in Shell Scripting
What is a Shell A shell is an interpreter in UNIX like Operating system. It takes commands typed by the user and calls the operating… Read More »Introduction To Shell Scripting Basics
