On 21/07/18 11:48, Wodry wrote: > One can use binary prefixes (iB, e.g. MiB) with dd command, but that is > not written in the help text. > > I just found out because I wanted to add support for binary prefixes > since I did not know they are already supported. > > It's a hidden, but valuable feature, since I think, that M is binary is > hard to remember and can easily lead to confusion. > > Much clearer is to use MiB. "M" is mentioned only for backwards > compatibility in this patch. > > The parsing for binary prefixes is done in > > gnulib/lib/xstrtol.c > > so this is not dd specific.
MiB is less ambiguous to read, though somewhat less portable. We should update truncate(1) etc. to be consistent if making this change. thanks, Pádraig