From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Michael Albinus Newsgroups: gmane.emacs.bugs Subject: bug#32093: 27.0.50; M-x grep appends /dev/null to command line Date: Sun, 08 Jul 2018 11:51:23 +0200 Message-ID: <87pnzyawdg.fsf@gmx.de> References: <87lgamdqcb.fsf@fencepost.gnu.org> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Trace: blaine.gmane.org 1531043408 25895 195.159.176.226 (8 Jul 2018 09:50:08 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Sun, 8 Jul 2018 09:50:08 +0000 (UTC) User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux) Cc: 32093@debbugs.gnu.org To: David Kastrup Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sun Jul 08 11:50:04 2018 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1fc6KO-0006Wf-Qj for geb-bug-gnu-emacs@m.gmane.org; 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Sun, 08 Jul 2018 11:51:25 +0200 In-Reply-To: <87lgamdqcb.fsf@fencepost.gnu.org> (David Kastrup's message of "Sun, 08 Jul 2018 11:33:24 +0200") X-Provags-ID: V03:K1:/c9qGh2LrbOIL9jBsOx/pjMHDQLFRqWRiYhdSWOdm7hy3Cvsd4x jyZHptQcBKLm8qLCApIfZccPoXsxh+cwyaPcQ1ZNsOrNHtF0LBeFvHEtUWvgtwwG2OganYT Sfb57zzfoBr/uVMeIMm0AMfsYM9QsLbLMlxW8L2j5kyhHlsPXnsPXLxWEI1tOXw/u4XvhcY qmwc6OP+9vcde9/Jb7HbQ== X-UI-Out-Filterresults: notjunk:1;V01:K0:PcErhTY88F8=:6sIPv/PJH74SoZ5BAbZtq+ hP1BfzrE4jyF2Ckiv/U27KcIEi98O6IIlVe+fTnd067oUyS+F//q5uNhKjBA0Kyu7Iy2vR/pV Q0UUC4y5jAf0EEw+fJ+yUZlun/9ZNqtqeV+oAnXOYuTJzH8jVnHrTbRa+bNrx1QBwwgX2l2bR q4HPhw22eQslARZMxnwBJ3BOd7PvQXCx5d5mdVLHRCsI6H6hHVyspgE/Subj9pSTMaboBFcBj ntRWFC0os+URZwl7cZKJD1VsepRsAZ7ARuhUahvw11ln3Vef51Ia4lEpm5hwO2OJy8pa2Uot5 sy1Zm/sTk1MD3cnNoF5ZEnlFCvRPxbG4JAjJ7nk4bKegDDlqNPBCDP1eIVv8azAnutrkPSqF3 yB7axFbEZWmqQoiHM1nJHppKMVCGoi0Mo2EJYwqr1XXczO8XTe53Kt9se0U7aNCyFK8JugX+Q jfmERBHq9zNmcvlLf5+MclpF+y+XBGvkRSZcbkosMoBLTj5ZrwlZoyyB8NmwdZ8ahV4onXY+C 81tLxnX10ODyUh5OMZ2GStmKx7Wuf2ghE7ZJYkWU5tYjAIR8x6/UhLt2uyi+kqJ46efUjQWjf buQXdDO1HYJVOo5XSUEVKF6j+Bb/zZuP0uQDOllodtkGw3L9UC7Nt9p8TKZqAwx0SZ3fNKnq+ 43tNka3/gR3F1u6BaGaSvJkrn8wzcmzb6uSBbmsZIMr/R/6VXoy7dFIZ2wYWo3RIzY77Woezi zGCfT1BfqqHbi2sPjLT2bLamcJI0uLJTGnkwzC/nEpCSJAV0BA7QV5P4Du8C3b4BfFg86QlI X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 208.118.235.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:148332 Archived-At: David Kastrup writes: > I did not ask for /dev/null to be appended to the command line, and > previous incantations didn't do it. Obviously, not all grep-kind > programs are happy about that change. --8<---------------cut here---------------start------------->8--- grep-use-null-device is a variable defined in =E2=80=98grep.el=E2=80=99. Its value is =E2=80=98auto-detect=E2=80=99 Documentation: If t, append the value of =E2=80=98null-device=E2=80=99 to =E2=80=98grep=E2= =80=99 commands. This is done to ensure that the output of grep includes the filename of any match in the case where only a single file is searched, and is not necessary if the grep program used supports the =E2=80=98-H=E2=80=99 option. In interactive usage, the actual value of this variable is set up by =E2=80=98grep-compute-defaults=E2=80=99; to change the default value, use Customize or call the function =E2=80=98grep-apply-setting=E2=80=99. You can customize this variable. --8<---------------cut here---------------end--------------->8--- Best regards, Michael.