title: How to do a "sed -" like operation on Windows?
body: <p>I have a large 55 GB file in which there is a sentence on every line.
  I want to check if there are any lines that have a dot "." at the end, and then if there is, I want to insert a space before the dot in that line.</p>
  
  <p>Ex: I like that car.
  Replace with: I like that car .</p>
  
  <p>A space before the trailing dot on every line if there is a dot.</p>
  
  <p>I don't have any cygwin or unix and I use a windows OS. Is there a sed like common that I can do on this 55GB! file? </p>
  
  <p>I tried GetGNUWin32 but I am unable to determine the actual command there.</p>