From owner-freebsd-hackers@freebsd.org Sat Dec 1 05:53:57 2018 Return-Path: Delivered-To: freebsd-hackers@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 919311331923; Sat, 1 Dec 2018 05:53:57 +0000 (UTC) (envelope-from rebecca@bluestop.org) Received: from muon.bluestop.org (muon.bluestop.org [96.73.9.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id C2E2F69D6B; Sat, 1 Dec 2018 05:53:56 +0000 (UTC) (envelope-from rebecca@bluestop.org) Received: from muon.bluestop.org (localhost [127.0.0.1]) by muon.bluestop.org (Postfix) with ESMTP id 01CCF343E3; Fri, 30 Nov 2018 22:54:35 -0700 (MST) Received: from muon.bluestop.org ([127.0.0.1]) by muon.bluestop.org (muon.bluestop.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id i0uBQTZWuiI3; Fri, 30 Nov 2018 22:54:35 -0700 (MST) Received: from photon.int.bluestop.org (gw.bluestop.org [96.73.9.3]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by muon.bluestop.org (Postfix) with ESMTPSA; Fri, 30 Nov 2018 22:54:35 -0700 (MST) From: Rebecca Cran To: freebsd-hackers@freebsd.org Cc: Eugene Grosbein , Ian Lepore , Masachika ISHIZUKA , hackers@freebsd.org Subject: Re: How to use trim command ? Date: Fri, 30 Nov 2018 22:53:47 -0700 Message-ID: <5281174.XOh7uYVVfo@photon.int.bluestop.org> In-Reply-To: References: <20181201.011411.2100982142219259108.ish@amail.plala.or.jp> <1543622218.1860.169.camel@freebsd.org> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" X-Rspamd-Queue-Id: C2E2F69D6B X-Spamd-Result: default: False [-5.63 / 15.00]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; R_DKIM_ALLOW(-0.20)[bluestop.org]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; R_SPF_ALLOW(-0.20)[+mx]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; MIME_GOOD(-0.10)[text/plain]; IP_SCORE(-3.12)[ip: (-9.77), ipnet: 96.64.0.0/11(-4.84), asn: 7922(-0.90), country: US(-0.09)]; RCPT_COUNT_FIVE(0.00)[5]; RCVD_COUNT_THREE(0.00)[4]; TO_MATCH_ENVRCPT_SOME(0.00)[]; DKIM_TRACE(0.00)[bluestop.org:+]; DMARC_POLICY_ALLOW(-0.50)[bluestop.org,quarantine]; MX_GOOD(-0.01)[mail.bluestop.org]; NEURAL_HAM_SHORT(-1.00)[-0.998,0]; FROM_EQ_ENVFROM(0.00)[]; SUBJECT_ENDS_QUESTION(1.00)[]; CTE_CASE(0.50)[]; ASN(0.00)[asn:7922, ipnet:96.64.0.0/11, country:US]; RCVD_TLS_LAST(0.00)[] X-Rspamd-Server: mx1.freebsd.org X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 01 Dec 2018 05:53:57 -0000 On Friday, 30 November 2018 17:36:01 MST Eugene Grosbein wrote: > 01.12.2018 6:56, Ian Lepore wrote: > newfs destroys data too, cat > /dev/da0 does this too, > add the name "dd" itself does not imply data destruction. > Can you invent better name? 'discard'? -- Rebecca Cran