Powershell

File search

Get-Childitem -Path C:\
Get-Childitem -Path C:\ -Recurse -force -Include *.txt
Get-Childitem -Path C:\ -Recurse -force -ErrorAction SilentlyContinue -Include *interesting-file.txt*
Get-Childitem -Path C:\ -Recurse -force -ErrorAction SilentlyContinue -Filter *interesting-file.txt*

Read file

more interesting-file.txt