From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Dani Moncayo Newsgroups: gmane.emacs.bugs Subject: bug#13032: 24.3.50; Request: Provide a `delete-duplicate-lines' command Date: Fri, 30 Nov 2012 08:51:34 +0100 Message-ID: References: <87obig2ap2.fsf@mail.jurta.org> <874nk728ci.fsf@mail.jurta.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 X-Trace: ger.gmane.org 1354261927 13566 80.91.229.3 (30 Nov 2012 07:52:07 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 30 Nov 2012 07:52:07 +0000 (UTC) Cc: Juanma Barranquero , 13032@debbugs.gnu.org To: Juri Linkov Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Fri Nov 30 08:52:18 2012 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1TeLOP-0008KB-No for geb-bug-gnu-emacs@m.gmane.org; Fri, 30 Nov 2012 08:52:13 +0100 Original-Received: from localhost ([::1]:52424 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TeLOE-0004Eu-EC for geb-bug-gnu-emacs@m.gmane.org; Fri, 30 Nov 2012 02:52:02 -0500 Original-Received: from eggs.gnu.org ([208.118.235.92]:42486) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TeLOB-0004Ek-No for bug-gnu-emacs@gnu.org; Fri, 30 Nov 2012 02:52:00 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1TeLOA-0000ui-F0 for bug-gnu-emacs@gnu.org; Fri, 30 Nov 2012 02:51:59 -0500 Original-Received: from debbugs.gnu.org ([140.186.70.43]:35840) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TeLOA-0000ue-BC for bug-gnu-emacs@gnu.org; Fri, 30 Nov 2012 02:51:58 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.72) (envelope-from ) id 1TeLQA-0003m4-7r for bug-gnu-emacs@gnu.org; Fri, 30 Nov 2012 02:54:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Dani Moncayo Original-Sender: debbugs-submit-bounces@debbugs.gnu.org Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Fri, 30 Nov 2012 07:54:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 13032 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 13032-submit@debbugs.gnu.org id=B13032.135426202414473 (code B ref 13032); Fri, 30 Nov 2012 07:54:02 +0000 Original-Received: (at 13032) by debbugs.gnu.org; 30 Nov 2012 07:53:44 +0000 Original-Received: from localhost ([127.0.0.1]:46088 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.72) (envelope-from ) id 1TeLPr-0003lN-8B for submit@debbugs.gnu.org; Fri, 30 Nov 2012 02:53:43 -0500 Original-Received: from mail-oa0-f44.google.com ([209.85.219.44]:39469) by debbugs.gnu.org with esmtp (Exim 4.72) (envelope-from ) id 1TeLPo-0003lB-V5 for 13032@debbugs.gnu.org; Fri, 30 Nov 2012 02:53:41 -0500 Original-Received: by mail-oa0-f44.google.com with SMTP id n5so159579oag.3 for <13032@debbugs.gnu.org>; Thu, 29 Nov 2012 23:51:35 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=8iq73qeMy+OF4XC650FXaSecXnDIFrmKwVWMv2fYvYU=; b=ubcJ0BC1dj5w5dEkVsE3oa+Ju1WcZY+wBeJIA7cfgTaEGQC2uDbllL7IFcQ8UVfGeR gs50VjXhw63Azw0NFIPOevnIFiTzYYF73hbkSqhjJw17d5uOgQMYfa9JfaTS7mjEafih nulgdfYMdoPaACh19s9J1oKQ2DCimiCdeVBgNGuP+tqu+2Ljn4rk8bCWqf1qsYVGMm+o SyUO37XKL74PC0EWDJrjqSLQ67oO9iiZ96wukDaIK0HOYe4zA/aoefSownSjmhyePe6D 4qIV15xwUhXFjZiNVglaXZPpGCysq3KKXt2qTnvqTvpOoVwb1i0uzf1Hy29toWeMttqY +1TA== Original-Received: by 10.182.116.6 with SMTP id js6mr283327obb.82.1354261894133; Thu, 29 Nov 2012 23:51:34 -0800 (PST) Original-Received: by 10.60.64.170 with HTTP; Thu, 29 Nov 2012 23:51:34 -0800 (PST) In-Reply-To: <874nk728ci.fsf@mail.jurta.org> X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.13 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6.x X-Received-From: 140.186.70.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:67633 >>> C-u M-| awk -- '!a[$0]++' RET >> >> Isn't >> >> C-u M-| uniq RET >> >> shorter and easier to type? > > I use `uniq' only on files where lines are sorted. OTOH, something like > '!a[$0]++' that is not limited to consecutive duplicates is better for > files where lines are not sorted such as log files, etc. My use cases usually involves compacting a collection of lines gathered from several places. So the compacting operation is normally coupled with a sort operation. Thus, the command provided by Juanma is good enough for these use cases (I first do a `sort-lines' and then a `delete-duplicate-lines'). But I agree that it would be even better if `delete-duplicate-lines' did TRT even when the lines are not sorted. (I've just tested this feature in MS-Excel, and it is so: it doesn't requires that the lines are previously sorted) Thank you. -- Dani Moncayo