Typically, we use arrow keys to control shell behaviors like moving the cursor from one point to another point. Also, it’s quite common to make mistakes while writing commands and to correct these you may use arrow keys + backspace, which is not optima…
If you have any experience on the Linux command line, then you should have run into command flags, which help us modify the behavior of a command that we are executing.For example, if we execute the ls -l command, the -l part of the command is a flag that we are passing as an argument […]
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Normally, a Bash script will execute each line of code the moment it reaches it, then immediately move on to the next. But it is also possible to add pauses to a Bash script in order to delay it or allow the user time to respond to a prompt, etc.
The p…
This guide explains how to use date command in Bash scripting, how to work with date and time using date in shell scripts, how to manipulate them and do various operations with it in Linux.
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Vim is one of the most used and well-known text editors on Linux and other Unix-based operating systems. It is free and open-source software, based on the original Vi editor (Vim stands for Vi IMproved) and mainly developed by Bram Moolenaar. The editor can be set up by editing the ~/.vimrc configuration file, and by […]
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Bash shell refers to Bourne Again Shell which can be found as the default shell in most of the Linux distributions. A Bash Script is a file where multiple shell commands are scripted to perform a particular task. If you are familiar with bash script then this article is for you, in this demonstration I […]
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Bash (Bourne Again Shell) is the default shell in practically all Linux-based operating systems. All the commands we write in the terminal are interpreted by the shell and become part of its history. In this tutorial, we’ll learn how to manage Ba…
This tutorial is strictly related to our former post on LEMP Installation on Gentoo. It also treats other server extended issues such as enabling dynamic scripting languages like Perl or Bash or Ruby through Fcgiwrap Gateway and editing Nginx Virtual H…
In this article, we are going to see how to parse arguments in bash scripts using bash’s built-in getopts function with examples.
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How do I use bash for loop to iterate thought array values under UNIX / Linux operating systems? How can I loop through an array of strings in Bash? This page explains how to declare a bash array and then use Bash for Loop to iterate through array valu…
In Linux, tasks can be automated by writing several commands in one script and then executing the script whenever the same set of commands are needed. These scripts accept a variety of command-line arguments, which are often passed collectively when the script is executed. The good thing is that a built-in function (called getopts) is available […]
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Want to learn about base64 encode and decode method? Here in this tutorial, we explain the base64 encode and decode steps using bash shell scripting with various examples.
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This guide explains what Bash case statement is and how to use case statement in Bash shell scripts, with examples.
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The ‘!’ symbol or operator in Linux can be used as Logical Negation operator as well as to fetch commands from history with tweaks or to run previously run command with modification. All the commands below have been checked explicitly in ba…
Bash supports two types of arrays, namely Indexed Array and Associative Array. This guide explains the Bash associative array in Linux.
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Bash supports two types of arrays namely Indexed Array Associative Array. This guide explains Bash indexed array in detail with examples.
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Loops are useful for automating repetitive tasks in Bash shell scripting. In this guide, we will learn about the for loop with examples.
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In Bash scripting, functions are ways to group the set of instructions together to get a specific outcome. This guide explains how to use functions in bash scripts in Linux with examples.
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When working with Bash scripts, you may end up in a situation where you have to process a series of inputs using the same command. Fortunately, there is a way in Bash to achieve this in a more optimal way using HereDoc. HereDoc, an acronym for Here Document, is an input redirection method to pass multiple […]
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Redirection and piping are two useful features in bash scripting that sysadmins and developers use often. This guide explains what Bash Redirection is and how to work with Redirection in Bash with example commands.
The post Bash Redirection Explained W…