first time

Linux users will appreciate this – the rest of you may care less…I can’t believe I’ve not done this before, but when editing a crucial file today with vi, I made an error or two and rather than correct them, I was going to close and reopen the file, without saving changes. :q! is what i meant to type, but I was too inaccurate and fast because I tapped :w key and hit enter by mistake. SIGH.