From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from omta001.cacentral1.a.cloudfilter.net (omta001.cacentral1.a.cloudfilter.net [3.97.99.32]) by sourceware.org (Postfix) with ESMTPS id B88AD3858D3C for ; Sun, 3 Oct 2021 19:26:18 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org B88AD3858D3C Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=SystematicSw.ab.ca Authentication-Results: sourceware.org; spf=none smtp.mailfrom=systematicsw.ab.ca Received: from shw-obgw-4001a.ext.cloudfilter.net ([10.228.9.142]) by cmsmtp with ESMTP id WwGpmsS40czbLX77qmwN3D; Sun, 03 Oct 2021 19:26:18 +0000 Received: from [192.168.1.105] ([68.147.0.90]) by cmsmtp with ESMTP id X77qmESYQU9pxX77qm73yY; Sun, 03 Oct 2021 19:26:18 +0000 X-Authority-Analysis: v=2.4 cv=Bbi7bph2 c=1 sm=1 tr=0 ts=615a03da a=T+ovY1NZ+FAi/xYICV7Bgg==:117 a=T+ovY1NZ+FAi/xYICV7Bgg==:17 a=IkcTkHD0fZMA:10 a=94nOnFI1EgyDtX4ev68A:9 a=QEXdDO2ut3YA:10 Reply-To: cygwin@cygwin.com Subject: Re: [ANNOUNCEMENT] Updated: less-581.2-1 To: cygwin@cygwin.com References: <82f20967-abe4-8d62-6435-c201b229e8c3@SystematicSw.ab.ca> From: Brian Inglis Organization: Systematic Software Message-ID: <3f3ce5f8-f6e2-2897-02bd-711717676139@SystematicSw.ab.ca> Date: Sun, 3 Oct 2021 13:26:17 -0600 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.14.0 MIME-Version: 1.0 In-Reply-To: <82f20967-abe4-8d62-6435-c201b229e8c3@SystematicSw.ab.ca> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-CA Content-Transfer-Encoding: 8bit X-CMAE-Envelope: MS4xfMu0uTxo9L8p8jWSMOaamwxU0DDet04Ph/vzMK3JOK8ELxv4GdxIn9V007Ir/FaVp9iUNO1bBOYMw8aOnbI4L4T8hlwMca8bRohBoujX80ikG9qpiEvM AsIa3pO08iSqFB/Phm8ntx1cmOt8w+4v0XCvP3IRc2PrQt0OVoowblPcT4Ua62EpGvh368aTj0Saj1pJwgaWRM+rhF6E/UghM1Q= X-Spam-Status: No, score=-1160.6 required=5.0 tests=BAYES_00, KAM_DMARC_STATUS, KAM_LAZY_DOMAIN_SECURITY, KAM_NUMSUBJECT, NICE_REPLY_A, RCVD_IN_BARRACUDACENTRAL, RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H4, RCVD_IN_MSPIKE_WL, SPF_HELO_NONE, SPF_NONE, TXREP autolearn=no autolearn_force=no version=3.4.4 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on server2.sourceware.org X-BeenThere: cygwin@cygwin.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: General Cygwin discussions and problem reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 03 Oct 2021 19:26:19 -0000 On 2021-09-18 12:01, Brian Inglis wrote: > On 2021-05-02 04:04, Marco Atzeri wrote: >> New version 581.2-1 of >>    less >> is available in the Cygwin distribution > > Running less +F (follow ) or less +G then F or less > then F does not seem to work (since at least v 530) on logs updated > every second or so or longer, showing only the last line(s) when > started, unlike tail -f or xtail: > $ for ((i = 1; i < 10000000; ++i)); do >   echo $i $i $i $i $i $i $i $i $i $i $i $i $i $i $i $i $i $i $i $i $i >   sleep 1 > done > t & less +F t > [wait] > ^C > G > q > $ kill %1 It appears the issue may be with lessopen, and mostly works if you use -L to disable lessopen, but NUL chars are displayed around startup, so it's not as clean as: $ tail -n$COLUMNS -f ... | less +F Maybe lessopen is disabled when input is from stdin? I will test with the new release and see if it's better. -- Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada This email may be disturbing to some readers as it contains too much technical detail. Reader discretion is advised. [Data in binary units and prefixes, physical quantities in SI.]