Use Select-String Cmdlet in PowerShell to View Contents of Log File - Scripting Blog
How to Use PowerShell Grep (Select-String)
PowerShell: How To Search A File (or String) For A String - YouTube
How to check file size using PowerShell Script [Easy Way] - SPGuides
Using PowerShell to split a string into an array
powershell script to search through text files
How to Search a String in Multiple Files and Return the Names of Files in PowerShell
GitHub - drmohundro/Find-String: A PowerShell script to provide functionality similar to grep or ack with highlighting.
How to grep with PowerShell
Use an Easy PowerShell Command to Search Files for Information - Scripting Blog
Recursively replacing a string in file and directory names and in text files on Windows - PowerShell to the rescue - AMIS, Data Driven Blog - Oracle & Microsoft Azure
Search for key words in PowerShell help files
How to find and replace the content from the file or string using PowerShell - GeeksforGeeks