From nobody Mon Aug 09 07:09:00 2021 X-Original-To: standards@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 5C0AC17480AB for ; Mon, 9 Aug 2021 07:09:00 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4GjnHw1zcnz3Mtj for ; Mon, 9 Aug 2021 07:09:00 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 2D15723D69 for ; Mon, 9 Aug 2021 07:09:00 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 1797907O076634 for ; Mon, 9 Aug 2021 07:09:00 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 179790br076630 for standards@FreeBSD.org; Mon, 9 Aug 2021 07:09:00 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: standards@FreeBSD.org Subject: [Bug 257702] /bin/sh: different behavior when chaining variable assignments Date: Mon, 09 Aug 2021 07:09:00 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: standards X-Bugzilla-Version: 13.0-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: dylan.araps@gmail.com X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: standards@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 List-Id: Standards compliance List-Archive: https://lists.freebsd.org/archives/freebsd-standards List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-standards@freebsd.org X-BeenThere: freebsd-standards@freebsd.org MIME-Version: 1.0 X-ThisMailContainsUnwantedMimeParts: N https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D257702 Bug ID: 257702 Summary: /bin/sh: different behavior when chaining variable assignments Product: Base System Version: 13.0-RELEASE Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: standards Assignee: standards@FreeBSD.org Reporter: dylan.araps@gmail.com I am not sure if this is the right component to open this issue under. Apologies in advance if this is the wrong place. Take the following example code: $ a=3D1 b=3D$a Expected behavior (tested in: ash (busybox), dash, bash, zsh, mirbsd ksh, openbsd ksh, yash, osh and pdsh): # b is set to a which is 1 $ echo $b 1 Actual behavior (freebsd sh): # just a newline $ echo $b Every other shell I have tried exhibits the "expected behavior". I do not k= now if this is a standards compliance issue or just a difference in behavior between freebsd sh and other shells. --=20 You are receiving this mail because: You are the assignee for the bug.=