From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mailsrv.cs.umass.edu (mailsrv.cs.umass.edu [128.119.240.136]) by sourceware.org (Postfix) with ESMTPS id A90223857812 for ; Thu, 25 Feb 2021 03:54:00 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org A90223857812 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=cs.umass.edu Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=moss@cs.umass.edu Received: from [192.168.0.100] (c-24-62-203-86.hsd1.ma.comcast.net [24.62.203.86]) by mailsrv.cs.umass.edu (Postfix) with ESMTPSA id 60C43401A56C; Wed, 24 Feb 2021 22:54:00 -0500 (EST) Reply-To: moss@cs.umass.edu Subject: Re: Tee and file redirections are very slow to write anything. To: Takashi Yano , cygwin@cygwin.com References: <87eeh5b39n.fsf@Otto.invalid> <49e01de1-f7de-5d60-2996-3c9afb834396@cs.umass.edu> <20210224224149.GM2979@dimstar.local.net> <20210225082654.163452f107ae657ebbeb1c07@nifty.ne.jp> From: Eliot Moss Message-ID: <7f8ea400-b058-c5dc-08b7-45fa92fc25b1@cs.umass.edu> Date: Wed, 24 Feb 2021 22:54:01 -0500 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:68.0) Gecko/20100101 Thunderbird/68.12.1 MIME-Version: 1.0 In-Reply-To: <20210225082654.163452f107ae657ebbeb1c07@nifty.ne.jp> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-2.7 required=5.0 tests=BAYES_00, JMQ_SPF_NEUTRAL, KAM_DMARC_STATUS, NICE_REPLY_A, RCVD_IN_DNSWL_LOW, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) 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: Thu, 25 Feb 2021 03:54:05 -0000 On 2/24/2021 6:26 PM, Takashi Yano via Cygwin wrote: > "stdbuf -o L bash ./path/to/script.sh > stdout.log" > "stdbuf -o L bash ./path/to/script.sh | tee stdout.log" Great stuff - thanks guys! And thanks for the correction about line buffering. Best - Eliot Moss