On Mon, Mar 21, 2011 at 9:45 PM, William Boshuck <bos...@math.mcgill.ca> wrote: > On Mon, Mar 21, 2011 at 01:18:41PM -0500, Chris Bennett wrote: > >> OpenBSD's form of sed requires you to output to a new file and >> mv that back to original. > > .. or one could use ed, or perl, to change a file in place.
What happens if ed, or perl, corrupts a system file in place? > > -wb