From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=5.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE autolearn=ham autolearn_force=no version=3.4.2 Received: from primenet.com.au (ns1.primenet.com.au [203.24.36.2]) by inbox.vuxu.org (OpenSMTPD) with ESMTP id 0502349c for ; Tue, 12 Mar 2019 05:24:24 +0000 (UTC) Received: (qmail 9357 invoked by alias); 12 Mar 2019 05:24:13 -0000 Mailing-List: contact zsh-workers-help@zsh.org; run by ezmlm Precedence: bulk X-No-Archive: yes List-Id: Zsh Workers List List-Post: List-Help: List-Unsubscribe: X-Seq: 44116 Received: (qmail 28282 invoked by uid 1010); 12 Mar 2019 05:24:13 -0000 X-Qmail-Scanner-Diagnostics: from mail-io1-f50.google.com by f.primenet.com.au (envelope-from , uid 7791) with qmail-scanner-2.11 (clamdscan: 0.100.2/25384. spamassassin: 3.4.2. Clear:RC:0(209.85.166.50):SA:0(-1.9/5.0):. Processed in 2.683179 secs); 12 Mar 2019 05:24:13 -0000 X-Envelope-From: dana@dana.is X-Qmail-Scanner-Mime-Attachments: | X-Qmail-Scanner-Zip-Files: | Received-SPF: pass (ns1.primenet.com.au: SPF record at _netblocks.google.com designates 209.85.166.50 as permitted sender) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=dana-is.20150623.gappssmtp.com; s=20150623; h=mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=1TLvzJ8MH6vX+rQZRAqk6/IvUFxpjIo+9Amd9SgEYHw=; b=RN5MoamU77vpeSRCfVb/2kmHDAA6uoVUDZZeTad08eIh0iobCGH689bi/ida3uVMRx pDxGxIT2b+pH968p4r+IpdUjG61NbgRaAMnwQtUg6NNOTPqEbQGyy+vfJUmkwBjx8mDI CXFJaGpfWP6ilCPVS5Lg6ukZX1MxFKrCTq4mp4qFL6sAEI2I0J9pJNVubg5bX0s6v0oX YhvOEw0yzakJlFKrF3ZDD0dpbs+VcHuevuLaOLwb07m7gHJ18/ageRE3WZXKv39amduP NU7P5ZYMzu5mGfR7BD2oplE8rF+CUK6nVmFo28lVnY15UPGBK2XqeHG7+omeuYCaGh0e PBaA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=1TLvzJ8MH6vX+rQZRAqk6/IvUFxpjIo+9Amd9SgEYHw=; b=mD3ILynYkalFuL51Kr7lBCk5uaoWL2aZ0W7d04CajytZIoUuSBh2qa5vvbB/BFNS5e I8mV19iHwhV8swI5dFVvRlb87+9pCcFbTCsHc5Y7tuOM4RtEtA7ZnpzMUfelgeEtoYHf MtgM0r1HAvtLNODf8BSXxRzW9t4ey09Yj7RKzkCiIVaZytsYZLHAMN2Luu1ayQahEfzp b1m8W99jmWUhPZIVwovoD/j0aoMjCVTCWjw+gOSSED1jaNJ4h3Gjy0ezB93yU+GPxoHq /HHDFTHdwww39eW3NNOru8rAuDHhZtlh6QcnfPxvdxfTIHkcIhrwf8eyC7oTyJTjNGH0 F66A== X-Gm-Message-State: APjAAAUXIIH6kRbPXKzmlirr3XXxcKgMdYsSBz+6ZjWHSvYQgmCPAofq uCS7LoMlR/2A8fMHxQyPSzwNvg== X-Google-Smtp-Source: APXvYqxxdQ5ivWafO/C6+gFJAKUdrYdHDOBJh9IytsWZ7kSJO6bHKzA8iDprwisAxErgcIJ4lW4nDA== X-Received: by 2002:a6b:c80e:: with SMTP id y14mr8627086iof.214.1552368216850; Mon, 11 Mar 2019 22:23:36 -0700 (PDT) Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 11.5 \(3445.9.1\)) Subject: Re: probably a bug in 'tr' command From: dana In-Reply-To: <7bdcddb8-75b1-3dcf-d5bb-b538448fde4b@gmail.com> Date: Tue, 12 Mar 2019 00:23:35 -0500 Cc: zsh-workers@zsh.org Content-Transfer-Encoding: quoted-printable Message-Id: <5F2C93C6-BA3B-416F-BAEC-58EB55C57C7F@dana.is> References: <7bdcddb8-75b1-3dcf-d5bb-b538448fde4b@gmail.com> To: =?utf-8?B?0JDQvdC00YDQtdC5INCS0LDRgNGP0L3QuNGG0LA=?= X-Mailer: Apple Mail (2.3445.9.1) On 12 Mar 2019, at 02:06, =D0=90=D0=BD=D0=B4=D1=80=D0=B5=D0=B9 = =D0=92=D0=B0=D1=80=D1=8F=D0=BD=D0=B8=D1=86=D0=B0 = wrote: >When I run the following command in zsh I get empty result. > >echo '-' | tr -dc '[0-9]-' > >Expected result is single dash as output. =46rom the manual section on the echo built-in: >Note that for standards compliance a double dash does not terminate = option >processing; instead, it is printed directly. However, a single dash = does >terminate option processing, so the first dash, possibly following = options, >is not printed, but everything following it is printed as an argument. = The >single dash behaviour is different from other shells. For a more = portable way >of printing text, see printf, and for a more controllable way of = printing >text within zsh, see print. dana