Regular expressions in grep ( regex ) with examples - nixCraft
Bash Shell Convert Uppercase to Lowercase in Linux - nixCraft
Linux tr Command with Examples
Bash Script - Working of Bash Variables - GeeksforGeeks
Randomly Switching Upper and Lowercase in a Shell Script | Linux Journal
How to Easily Change the Case on Text in Microsoft Word
Shell Scripting - Rules for Naming Variable Name - GeeksforGeeks
How to Easily Change the Case on Text in Microsoft Word
Bash Shell Convert Uppercase to Lowercase in Linux - nixCraft
Shell Script to Convert a File Content to Lower Case or Upper Case - GeeksforGeeks
Shell Scripting Tutorial-37: The 'case' Statement - YouTube
![String Operation in Bash Scripts: [Beginner's Guide]](https://linuxhandbook.com/content/images/2020/08/strings-bash.jpg "String Operation in Bash Scripts: [Beginner's Guide]")
String Operation in Bash Scripts: [Beginner's Guide]
Case Transformation in Bash and POSIX with Examples | by Shinichi Okada | mkdir Awesome | Medium
Bash Advanced Variable Idioms for Case Sensitivity Management - Linux Tutorials - Learn Linux Configuration
Linux Tr Command
Bash case Statement Syntax and Examples
Bash check if string starts with character such as # - nixCraft
Bash lowercase and uppercase strings
Bash lowercase and uppercase strings
python - Pasting into cmd/powershell cuts off the first letter - Stack Overflow
How To Use Bash Parameter Substitution Like A Pro - nixCraft
How to rename multiple files on Linux - Linux Tutorials - Learn Linux Configuration
