Re: grep: default file if -r is used

[Paul Jarc]

Paul Eggert <address@hidden> wrote:
> 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 ".".

Couldn't that break existing code?  If GREP_OPTIONS=-r happens to be
set in the environment when a script runs "whatever | grep pattern",
grep should still read stdin.


paul