On Fri, Feb 13, 2009 at 6:47 AM, Dr Andrew C Aitchison <[log in to unmask]> wrote: > On Fri, 13 Feb 2009, Akemi Yagi wrote: > >> On Fri, Feb 13, 2009 at 6:08 AM, Troy Dawson <[log in to unmask]> wrote: >>> >>> Hi, >>> Sorry to contradict you, but if someone does what you say, they will >>> install >>> "all* the kernels and *all* the kernel-modules. >>> No, do *not* substitute "update" for "install", they mean two totally >>> different things. >> >> I think you meant "Do not replace 'update' with 'install'...". That >> is, "yum update" is the correct method. >> >> I am a Japanese and I myself have some difficulties with the word >> "substitute". But I understand "to substitute A" implies "to place the >> word A in there", but not "to replace A". :) > > No. "substitute" does mean remove the old thing and "replace" it with the > new one. However the order may be different, especially if (as they should > be) the preposition is different. I think proper grammar is > Substitute A for B > Replace B with A. > In both of these B is the old, removed item and A is the new, installed item This is *exactly* what I wrote/meant above. :-) If I were to rephrase it in a longer form -- When you substitute A (for B), you will be placing A in there (and in the process removing B) and therefore it does not mean "you replace A". We, non-native English speakers tend to use the word "substitute" when we mean "replace". To avoid confusion, it is probably best if the word replace is used instead to substitute. Akemi