From owner-freebsd-bugs@freebsd.org Thu Apr 28 01:25:06 2016 Return-Path: Delivered-To: freebsd-bugs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id E0856B1EADC for ; Thu, 28 Apr 2016 01:25:06 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id B894C143C for ; Thu, 28 Apr 2016 01:25:06 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from bugs.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id u3S1P6fJ007719 for ; Thu, 28 Apr 2016 01:25:06 GMT (envelope-from bugzilla-noreply@freebsd.org) From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 209116] bsdgrep -Fxf failing if earlier non-match is a sub-prefix of the actual match Date: Thu, 28 Apr 2016 01:25:06 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: bin X-Bugzilla-Version: 9.1-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: shane@itlab.co.nz X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: freebsd-bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 28 Apr 2016 01:25:07 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D209116 Bug ID: 209116 Summary: bsdgrep -Fxf failing if earlier non-match is a sub-prefix of the actual match Product: Base System Version: 9.1-RELEASE Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: bin Assignee: freebsd-bugs@FreeBSD.org Reporter: shane@itlab.co.nz I have a script that generates a list of pending build targets and a list of targets this machine can build, and generates the intersection list using g= rep -Fxf. On our Mac it was behaving strangely and I've tracked and reduced it = to the following snippets. Although found on OSX, I've reproduced this bug using the bsdgrep command in FreeBSD 9.0-RELEASE (bsdgrep -V -> "bsdgrep (BSD grep) 2.5.1-FreeBSD"). The grep on OSX is bsdgrep, while on my BSD it is GNU grep. # -F=3Dfixed strings, -x=3Dmatch whole lines, -f=3Dread patterns from file printf "linux\nbsd\nmacosx64\n" | bsdgrep -Fxf <(printf "macosx\nmacosx64\n= ") gives no result, but the following work fine. # swap pattern order printf "linux\nbsd\nmacosx64\n" | bsdgrep -Fxf <(printf "macosx64\nmacosx\n= ") # search for prefix substring printf "linux\nbsd\nmacosx\n" | bsdgrep -Fxf <(printf "macosx\nmacosx64\n") # in either pattern order printf "linux\nbsd\nmacosx\n" | bsdgrep -Fxf <(printf "macosx64\nmacosx\n") It seems to fail to match a line that contains an earlier pattern match as a prefix. I will simply avoid this problem by using comm instead, but I'll hang around for a while to answer any questions that come up. --=20 You are receiving this mail because: You are the assignee for the bug.=