parameter-expansion – CodeRavo

Working with Environment Variables in Shell Scripts

Environment variables are a fundamental concept in shell scripting, allowing you to store and retrieve values … Working with Environment Variables in Shell ScriptsRead more

Bash, default-values, Environment Variables, parameter-expansion, shell scripting

Default Values for Shell Variables in Bash

Bash provides powerful mechanisms for assigning default values to variables, simplifying script logic and making code … Default Values for Shell Variables in BashRead more

Bash, command-line-arguments, default-values, error handling, null, parameter-expansion, shell scripting, Unset, variables

Extracting the Last Component of a Directory Path in Bash

Introduction In many scenarios, you may find yourself needing to extract just the name of the … Extracting the Last Component of a Directory Path in BashRead more

basename, Bash, directory-path, IFS, parameter-expansion, shell-script

String Prefix Checking in Bash

Checking for String Prefixes in Bash This tutorial explains how to determine if a string begins … String Prefix Checking in BashRead more

Bash, case, comparison, conditional, parameter-expansion, prefix, regular-expression, Scripting, string, wildcard

File Iteration and Manipulation in Bash

File Iteration and Manipulation in Bash This tutorial covers how to iterate through files within a … File Iteration and Manipulation in BashRead more

Bash, file-iteration, file-manipulation, file-names, file-processing, find, globbing, loops, parameter-expansion, paths, shell scripting

Converting Strings to Lowercase (and Uppercase) in Bash

Introduction In shell scripting, particularly with Bash, manipulating string cases is a common task. Whether you’re … Converting Strings to Lowercase (and Uppercase) in BashRead more

awk, Bash, lowercase-conversion, nodejs, parameter-expansion, perl, PHP, Python, ruby, sed, string manipulation, tr, uppercase-conversion

String Manipulation and Substitution in Bash Scripts

Introduction Working with strings is a common task in shell scripting, particularly when you need to … String Manipulation and Substitution in Bash ScriptsRead more

Bash, global-substitution, parameter-expansion, sed, shell scripting, string manipulation, substring-replacement

Checking if a Variable is Set in Bash

In Bash, it’s often necessary to check if a variable has been set before attempting to … Checking if a Variable is Set in BashRead more

Bash scripting, conditional expressions, parameter-expansion, posix-standards, variable-checking