In Bash scripting, there are several ways to add comments, and in this article, we’ll explore different methods to do just that. 1. Single Line Comment in Bash The most common way to add comments in Bash scripts is by using the#symbol. Anything that comes after the#on a line is con...
Multiline or block comment in bash is not directly possible. You can use multiple single line comments but I know that’s not very convenient, specially when you have to uncomment the entire block of code. #!/bin/bash # Add a # in front of every line you want to comment out # But...
In this guide, we will navigate you through the process of installing the Bash shell on your Linux system.We will show methods for installing with APT distros like Ubuntu and Debian as well as YUM-based distributions like CentOS and Alama Linux. We’ll also delve into how to compile Bash ...
Bash scripts take in command-line arguments as inputs bothsequentiallyand also, parsed asoptions. The command-line utilities use these arguments to conditionally trigger functions in a Bash script or selectively choose between environments to execute the script. In Bash, these are configured in diffe...
One of the ways to append text to a file in Bash is to use the>>redirection operator. The>>redirection operator is used in command-line interfaces andshell scriptingto control the input and output ofcommands. Use the operator to redirect a command's output to the end of the specified fil...
Bash provides logical operators to combine multiple conditions in if statements. The common logical operators are: -eq: Equal -ne: Not equal -lt: Less than -le: Less than or equal to -gt: Greater than -ge: Greater than or equal to ...
/bin/bash awk'{print $1}'testfile.txt In the text file the first entry of first line is “This” and the first entry of the second line is “Hello” so here is the output of the given code: Conclusion The awk command is a powerful tool that is used to manipulate and process ...
Write to File via printf Command The Bashprintf commandproduces formatted text output in the terminal. It allows users to control the width, precision, alignment, and other formatting options of the displayed values. The command is beneficial when presenting data in a specific way, with a particu...
/usr/bin/env bashtemp=$(command-v nvm)echo$temp# if [[ $temp -eq nvm ]]; thenif[$temp== nvm ];thenecho"❌ nvm not exist, trying to re-install it ... ⏳"elseecho"nvm had been installed ✅"fiechofinished 🎉 solutions ✅...