On 13.1. 14:37, Andreas Schwab wrote:
On Jan 13 2019, Robert Elz <k...@munnari.oz.au> wrote:
The pattern
./$null"$dir"/
is expanded (parameter expansion) to
./@()./
which does not have a "." immediately after the / and
tus cannot match any filename (incoludeing ".") which
starts with a '.' character.
For the same reason `*.' doesn't match `.'. Making `@()' work differently
from `*' would be surprising.
However, ?(aa).foo matches the file .foo in Bash 4.4 and 5.0 (and
also in Ksh and Zsh), so extglob already breaks the above mentioned rule.
$ touch .foo aa.foo; bash -O extglob -c 'echo ?(aa).foo'
aa.foo .foo
The change in Bash 5.0 also makes @(aa|) different from ?(aa) , even
though the distinction between those two doesn't appear immediately
obvious.
--
Ilkka Virta / itvi...@iki.fi
