Re: grep: default file if -r is used

[Paul Eggert]

Stepan Kasal <address@hidden> writes:

> When GREP_OPTIONS contains --directories=recurse, the default should still
> be `stdin', when grep is called as `grep -r', the default should be `.'.
> But where should the border lie?  Should we decide according to where was
> `-r' specified?  Or according to which form was used (-r, -drecurse, or
> --directories=recurse)?

This shouldn't be a problem.  The default should not depend on the
form used to specify recursion.  The point is that, if recursion is
specified, it's not reasonable for grep to recurse on the standard
input, so we might as well use a better default in that case, namely
".".