Path: csiph.com!fu-berlin.de!usenet.stanford.edu!not-for-mail From: Chet Ramey Newsgroups: gnu.bash.bug Subject: Re: set -u not working as expected Date: Sun, 2 Aug 2020 16:57:24 -0400 Organization: ITS, Case Western Reserve University Lines: 22 Approved: bug-bash@gnu.org Message-ID: References: <000301d66834$588493c0$098dbb40$@kalvr.net> <1867D8FC-85DD-4406-A239-3002913493AB@larryv.me> <61B2CB9D-3978-4872-B88A-1542CF95B5B9@larryv.me> Reply-To: chet.ramey@case.edu NNTP-Posting-Host: lists.gnu.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Trace: usenet.stanford.edu 1596401852 8349 209.51.188.17 (2 Aug 2020 20:57:32 GMT) X-Complaints-To: action@cs.stanford.edu Cc: chet.ramey@case.edu, "bug-bash@gnu.org" , Kristof Burek To: =?UTF-8?B?T8SfdXo=?= , =?UTF-8?Q?Lawrence_Vel=c3=a1zquez?= Envelope-to: bug-bash@gnu.org DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=case.edu; s=smtp-primary; t=1596401848; bh=wzxQHfcbHafLJ/J7MjN+fJxbqD+LyKw/lEkcm0vrAUg=; 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envelope-from=chet.ramey@case.edu; helo=mpv1-2015.case.edu X-detected-operating-system: by eggs.gnu.org: First seen = 2020/08/02 16:22:51 X-ACL-Warn: Detected OS = Linux 2.4.x-2.6.x [generic] X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: bug-bash@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Bug reports for the GNU Bourne Again SHell List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Mailman-Original-Message-ID: X-Mailman-Original-References: <000301d66834$588493c0$098dbb40$@kalvr.net> <1867D8FC-85DD-4406-A239-3002913493AB@larryv.me> <61B2CB9D-3978-4872-B88A-1542CF95B5B9@larryv.me> Xref: csiph.com gnu.bash.bug:16681 On 8/2/20 4:01 AM, Oğuz wrote: > $ set -u > $ unset foo bar > $ typeset -i foo bar > $ > $ foo+=foo+1 > $ > $ foo+=bar+1 > bash: bar: unbound variable > > Only referencing `bar' triggers the _unbound variable_ error, it makes > sense that the name being assigned is immune to that. You could make a decent case that this is a bug in bash, I suppose, but I am comfortable with the current behavior. -- ``The lyf so short, the craft so long to lerne.'' - Chaucer ``Ars longa, vita brevis'' - Hippocrates Chet Ramey, UTech, CWRU chet@case.edu http://tiswww.cwru.edu/~chet/