Date: Fri, 7 Nov 2014 21:30:17 +0000 (UTC) From: Jilles Tjoelker <jilles@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r274254 - head/bin/sh Message-ID: <201411072130.sA7LUHJ6064014@svn.freebsd.org>
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Author: jilles Date: Fri Nov 7 21:30:16 2014 New Revision: 274254 URL: https://svnweb.freebsd.org/changeset/base/274254 Log: sh(1): Mention portability issue with shifting zero positional parameters. Per Austin Group issue #459, shifting zero positional parameters may or may not be considered an operand error (which causes the shell to exit in most cases). Modified: head/bin/sh/sh.1 Modified: head/bin/sh/sh.1 ============================================================================== --- head/bin/sh/sh.1 Fri Nov 7 20:42:15 2014 (r274253) +++ head/bin/sh/sh.1 Fri Nov 7 21:30:16 2014 (r274254) @@ -32,7 +32,7 @@ .\" from: @(#)sh.1 8.6 (Berkeley) 5/4/95 .\" $FreeBSD$ .\" -.Dd September 21, 2014 +.Dd November 7, 2014 .Dt SH 1 .Os .Sh NAME @@ -2522,7 +2522,8 @@ and so on, decreasing the value of .Li $# by one. -If there are zero positional parameters, shifting does not do anything. +For portability, shifting if there are zero positional parameters +should be avoided, since the shell may abort. .It Ic test A built-in equivalent of .Xr test 1 .
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