Bash, the powerful scripting language for Linux and Unix systems, offers a versatile tool for checking conditions: the test command (and its convenient alternatives). Let’s explore how test empowers your scripts to make informed decisions and handle errors gracefully. What is the Test Command? The test command (or its equivalent square bracket syntax []) evaluates […]
Bash scripting offers a straightforward way to add decision-making logic to your commands: the if-then-else statement. Let’s explore how this simple structure can empower your scripts. What is an If-Then-Else Statement? Think of it as a fork in the road for your script: Syntax Breakdown Important Notes: Examples Example 1: Checking File Contents Example 2:
Bash, the beloved scripting language for Linux and Unix systems, offers a powerful tool for decision-making: the case statement. Let’s unravel how this feature can elevate your scripts’ efficiency and readability. What is a Bash Case Statement? Think of a case statement as an elegant way to compare a variable’s value against multiple possibilities. It’s
In our file redirection in bash post, we explored the basics of file redirection in Bash. But what exactly happens behind the scenes when you use those > and < symbols? Enter the world of file descriptors! What Are File Descriptors? Simply put, file descriptors are numbers that your shell uses to keep track of
Have you ever wished you could control where the output of your Bash commands goes? Or maybe you’ve wanted to feed a command input from a file instead of your keyboard? Well, with file redirection, you can! This powerful Bash feature lets you manipulate standard input (stdin), standard output (stdout), and standard error (stderr) to