[wizbones]

Ok,

Phew braincell is smoking now:

Here goes

Open the file to edit in vi

To replace Do this ...
pattern1 with pattern2 :s/pattern1/pattern2 on the same line

every occurrence of pattern1 :g/pattern1/s//pattern2/g with pattern2

You may run into trouble with the characters in the text you're trying to change I'm not sure. I would make a copy of a file first and practice on that.

I'll see if I can dredge up a better way to so rather than file by file as well.

Cheers