Powershell Select-String Cmdlet is similar to grep in Linux.
NAME Select-String SYNOPSIS Finds text in strings and files. ALIAS sls
Use Powershell Get-ChildItem and Select-String cmdlets to search for specific string in files.
Get-ChildItem -recurse | Select-String -pattern "string to search for"
Example: Search for "172.30.1.1" in all files in Data folder and subfolders
PS D:\Data> Get-ChildItem -recurse | Select-String -pattern "172\.30\.1\.1"