On Fri, Dec 9, 2011 at 20:12, Stephane CHAZELAS <stephane_chaze...@yahoo.fr>wrote:
> 2011-12-9, 16:16(+08), Clark J. Wang: > > See following: > > > > # shopt extglob > > extglob on > > # echo $BASH_VERSION > > 4.2.20(1)-release > > # ls -d /root > > /root > > # pwd > > / > > # echo @(root) > > root > > # echo @(/root) > > @(/root) <-- ??? > > # echo @(/root*) > > @(/root*) <-- ??? > > # > > > > I'm confused why @(/root) and @(/root*) do not work here. > > Globbing operators (*, ?, [/], @(..)) don't match "/". "/" has > to be inserted literally. > > See the doc: > > When a pattern is used for filename expansion, the character `.' at > the start of a filename or immediately following a slash must be > matched explicitly, unless the shell option `dotglob' is set. When > ~~~~ > matching a file name, the slash character must always be matched > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > explicitly. In other cases, the `.' character is not treated specially. > ~~~~~~~~~~ > Thanks. I see the point now. I never really noticed that before since things like `echo /root*' always worked fine. :) > > -- > Stephane > > > > > -- -Clark
