How can regular expressions be used in shell scripts? Provide an example.

Regular expressions are a powerful tool for pattern matching and text manipulation, and they can be effectively used in shell scripts to perform various tasks. Shell scripts are typically used in command-line environments to automate tasks and process textual data. Regular expressions provide a concise and flexible way to search, match, and manipulate text within a shell script. Here's an example of how regular expressions can be used in a shell script: Suppose you have a directory containing multiple files, and you want to search for all files with a specific pattern in their names. You can use regular expressions to achi....