How to change same value in multiple files (Windows)

Little trick for people who do not know how...

To change same text in many files there are many methods, some easy other not so...

For ex. to change "Plural-Forms: nplurals=INTEGER; plural=EXPRESSION;\n" to :"Plural-Forms: nplurals=2; plural=n != 1;\n"

In this example I only needed to change the "INTEGER" and "EXPRESSION" to correct values this can be done like this:
sed -s "s/INTEGER/2/" -e "s/EXPRESSION/n != 1/" filename.po >filename.po.new

To do this on many files I use this command "for /f %i in ('dir /b /s *.po') do sed -e "s/INTEGER/2/" -e "s/EXPRESSION/n != 1/" %i > %i.new"

Then i double-check my new file and if correct i do "move" "for /f %i in ('dir /b /s *.po') do move /Y %i.new %i

I use sed.exe from unxutils http://unxutils.sourceforge.net, who also have many other useful text utils for windows users. Like those we know from Linux...

(You can also change the file "inplace" by adding the -i parameter, but I don't like that...)