Re: bug with grep 3.0.2 in cygwin 3.0.7

[Eliot Moss <moss at cs dot umass dot edu>]

On 8/28/2019 3:16 AM, akiki@free.fr wrote:
> Hi,
> I encounter some problem with grep option -E on cygwin 3.0.7
>
>
> echo "a^b" | grep "a^b" #answer a^b ie it's OK
> but
> echo "a^b" | grep -E "a^b" #answer nothing " for me it's KO
>
>
> I have to backslash ^ to be OK like : grep -E 'a\^b'
>
>
> Is-it a bug ?
> I don't know if all versions of cygwin and grep are concerned.

From my reading of the man page, it's either a program bug or a
documentation bug.  It could well be the latter since -E extended
regular expressions require a number of other metacharacters to
be backslash quoted.  However, the documentation does not mention
the ^ metacharacter.

Regards - EM

--
Problem reports:       http://cygwin.com/problems.html
FAQ:                   http://cygwin.com/faq/
Documentation:         http://cygwin.com/docs.html
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple