X-Recipient: archive-cygwin AT delorie DOT com DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:subject:to:references:from:message-id:date :mime-version:in-reply-to:content-type :content-transfer-encoding; q=dns; s=default; b=mbyCiUwVbc+bxkbh VcX9TFGVEqRG/HXPh+h3Vj9T5D+lomGYW+2M1YK7lNcGkY6aupJY/50SbLDhZdbT gEiwbDuUNo6LSCEVywTEUUR+/mNtOzvDwYxq7My83tYWJcRiaDQGxfRfycva7OPf m+b81RjAOPI2BqLtRnlddkLDztg= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:subject:to:references:from:message-id:date :mime-version:in-reply-to:content-type :content-transfer-encoding; s=default; bh=DSSBU6mMACoQbcPs2dyMeH UsLHw=; b=JGjVqfPpSyAB7EG/bJJvJafbhb1GRIPr2WsVNz2svsiaES0zOoRwsb sW4ylA72LSXFlxpdTj0nzcnMLmRrqmOhsUpbcTicUCEIKilIqfuwt0baDMI/dUjT NI1zbb3ZNxeAYpT6QIM5FFxtMYKujaVVcRqzHLx/27UNAJPnXm8do= Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner AT cygwin DOT com Mail-Followup-To: cygwin AT cygwin DOT com Delivered-To: mailing list cygwin AT cygwin DOT com Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-1.4 required=5.0 tests=AWL,BAYES_00,FREEMAIL_FROM,RCVD_IN_DNSWL_NONE,RCVD_IN_SORBS_SPAM,SPF_PASS autolearn=no version=3.3.2 spammy=disasters, $foodir, foodir, defensive X-HELO: mail-io0-f177.google.com X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-transfer-encoding; bh=2EukFqbMDByYcRvhymBeL/a5P7tHR9EaGREvFBCayEo=; b=tOeuRo9bLmA5NkKXU3Bxq2GNOn2N8e+aa7ip8EUgg3+57AM0W9oxEjnQqsECxTM7Ap rFLcLULeHuk9v87mEk8fEw3XyUCLO+/fsLaHmCZfQqpcFU1fagqtkCQmwlL18o4Y+SjE QiTrN6U+AtGnCWfpzv+2dX0wz9ZwlhTYXDX0u8dtmbOxvEt2PiJ7bA8ieGShUk6irLjJ Fda2C9MkFoB7zF4+RgfwlhQiZ2NHqn1vasbKgmrtQkAFi9AteQn/KjwYJXOc5cvEfqKt hj2R5t07COQPe+YA7s2GqhlEk0TnjZnxoEg/cgIxGclqPTOMaFkrMlRoQnLduKzoVnQz R8Vg== X-Gm-Message-State: AN3rC/5uQaIQADFj9bGI7hrHqqNguvPbcmtOZ+GesNo1zw2pA1FKn5o3 CdVr6i0+v8QiLnJn X-Received: by 10.36.219.195 with SMTP id c186mr24395228itg.25.1492173746611; Fri, 14 Apr 2017 05:42:26 -0700 (PDT) Subject: Re: /bin/ gets deleted on error To: cygwin AT cygwin DOT com References: <58EFB88A DOT 5090807 AT tlinx DOT org> From: cyg Simple Message-ID: <2a9f35c8-9d7a-c3a9-68b4-b2f3602474e5@gmail.com> Date: Fri, 14 Apr 2017 08:42:38 -0400 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.8.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-IsSubscribed: yes On 4/13/2017 2:43 PM, Brian Inglis wrote: > defensive coding is your friend to avoid disasters: > if [ -n "$foodir" ] && [ -d $foodir/ ]; then > /bin/rm -fR -- $foodir || exit > else > echo "Can't find directory '$foodir'" > exit 2 > fi > And even this can be troublesome if you mistype a variable name anywhere in this code. -- cyg Simple -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple