Path: csiph.com!goblin1!goblin.stu.neva.ru!usenet.stanford.edu!not-for-mail From: Greg Wooledge Newsgroups: gnu.bash.bug Subject: Re: Incrementing variable=0 with arithmetic expansion causes Return code = 1 Date: Fri, 28 Aug 2020 11:22:52 -0400 Lines: 13 Approved: bug-bash@gnu.org Message-ID: References: <20200828152252.GH931@eeg.ccf.org> NNTP-Posting-Host: lists.gnu.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: usenet.stanford.edu 1598628204 6235 209.51.188.17 (28 Aug 2020 15:23:24 GMT) X-Complaints-To: action@cs.stanford.edu To: bug-bash@gnu.org Envelope-to: bug-bash@gnu.org Mail-Followup-To: bug-bash@gnu.org Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) Received-SPF: none client-ip=139.137.100.1; envelope-from=wooledg@eeg.ccf.org; helo=mail.eeg.ccf.org X-detected-operating-system: by eggs.gnu.org: First seen = 2020/08/28 11:22:53 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -14 X-Spam_score: -1.5 X-Spam_bar: - X-Spam_report: (-1.5 / 5.0 requ) BAYES_00=-1.9, KHOP_HELO_FCRDNS=0.4, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=no 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: <20200828152252.GH931@eeg.ccf.org> X-Mailman-Original-References: Xref: csiph.com gnu.bash.bug:16828 On Fri, Aug 28, 2020 at 08:00:30AM +0000, Gabriel Winkler wrote: > # Causes error > test=0 > ((test++)) > echo $? > 1 > echo $test > 1 https://mywiki.wooledge.org/BashFAQ/105 Exercise 1. And 2. And the whole rest of the page.