On Sun, Dec 11, 2005 at 12:34:42PM +0100, Werner LEMBERG wrote:
> Consider this pipeline
>
> makeinfo --version | sed 's/^.* \([^ ]\+\)$/\1/;1q'
>
> with GNU sed 4.0.9 I get
>
> 4.8
>
> but with the (BSD) sed from OS X I get
>
> makeinfo (GNU texinfo) 4.8
>
> I wonder whether this is a BSD sed bug or whether I'm doing something
> wrong.
GNU sed recognizes `\+' as shorthand for `\{1,\}', but POSIX leaves its meaning
undefined. I suspect BSD sed treats it like literal `+'.
Consider using this:
makeinfo --version | sed 's/.* //;q'
Please accept my apologies for the delay in responding to your query.
