title: PowerShell - Insert string in text file on the next line after another string
body: <p>This seems like a simple one, but I just can't wrap my head around it / find a post covering it</p>
  
  <p>I'm trying to use PowerShell to modify a text (config) file
  Find where a specific string (A) occurs, then add another string (B) to the next line after. Preserving the line where string (A) occurs</p>
  
  <p>So the problem is I can't do a simple find and replace as the line where string (A) occurs has other text after it</p>
  
  <p>Here's for hoping someone smarter than I knows the trick. Cheers</p>