From owner-freebsd-hackers@freebsd.org Sun Dec 2 00:18:55 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 BAE9F132CD40; Sun, 2 Dec 2018 00:18:54 +0000 (UTC) (envelope-from james.wright@jigsawdezign.com) Received: from mout.kundenserver.de (mout.kundenserver.de [212.227.17.13]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "mout.kundenserver.de", Issuer "TeleSec ServerPass DE-2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 87C8E7A6E7; Sun, 2 Dec 2018 00:18:53 +0000 (UTC) (envelope-from james.wright@jigsawdezign.com) Received: from [192.168.0.11] ([82.18.193.38]) by mrelayeu.kundenserver.de (mreue108 [212.227.15.179]) with ESMTPSA (Nemesis) id 1MNso2-1grXdS2g36-00OHRh; Sun, 02 Dec 2018 01:17:54 +0100 Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 11.5 \(3445.9.1\)) Subject: Re: How to use trim command ? From: James Wright In-Reply-To: Date: Sun, 2 Dec 2018 00:17:47 +0000 Cc: Rebecca Cran , ish@amail.plala.or.jp, "freebsd-hackers@freebsd.org" , "freebsd-hackers@freebsd.org" , Eugene Grosbein , Ian Lepore Content-Transfer-Encoding: 7bit Message-Id: <6869972A-2E15-40DF-AD69-3512928CB77F@jigsawdezign.com> References: <20181201.011411.2100982142219259108.ish@amail.plala.or.jp> <1543622218.1860.169.camel@freebsd.org> <5281174.XOh7uYVVfo@photon.int.bluestop.org> To: Warner Losh X-Mailer: Apple Mail (2.3445.9.1) X-Provags-ID: V03:K1:4pwd6Z99e3AqqgXbUd8XJ75oif02RhRdztQ/7tpfpzy1gcuISWm Zbj5EPHTMXrBjE+XyF7UO9j22gVLzx/4T2w0vKv2MKLt/s6Ie/7GKAKSq7xWUZtQYv519Gs npSo0g58TGdTYGMaO+HfJojXK/RE099FSHogWWe2Jwuq8gHYfRyydAblbQTvDbUuwy8m/RN NW5C1c/gF/vNv0JwnDo4g== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1;V03:K0:uP8fL0HQ3/c=:pRjjwrOIqczZPgSQPid+iZ jBBn64XHyJR2cofGN4LNvAJiFr/IicX0K5aSw6EO0WXVLaFwLUMybqs90VM+yKNA3KGLJktJs DE6BKEV1DLnxbAsVMBB3gNz70qmAcoEJEdmlTCIll8LPLkrUInYmfPNGzkJY9Yy8rzgGODUUU 1Z5ycYCat9F/Kf8INNnVBu6Cw1RrG9VqsG8UIOqBpsDfGBXdnNKMSIIKhBsLSvfvif5HYL0W1 q8tlWImsT8vVuqXXrDouXqu3BG5sJXAj2LVgDyRDd5R/G4ibTmaUcMmjoMAPL8wBnBZGiA3vT GPH0k1ECdNJnWwLmoS/mkotObXsz5BDUa0Fa0F3I6twRHHXBK3Oz5hkw1YmnrC8WqPc65+9Q4 4x89UW1ua/n0n9iYOmzUBfrcfchekOamYelD7JWvH7qBP+7NCD5wU1FKcY5YpIbTgAHr1azGD xwkuhVYyzCR5dUWbtitRQFTjdhsM8UNbt4fJT/Au9fFbF5x1Sz9lYJWnDyq3B7cCc0G0jUv6M 5KQxk5KTPJVioZg1hfJfY5HZnxrQnfMqvk/PsMXcVuVES12htSFWPUJeIOuRLN47N4UZuRK45 wC2lzUqrOkX+U1LD5j1HR19bsCCE+fXnspWQmmmN+ilGeaotaZZfRnHtzUTrRzsK/WhsfBEfK K4F2ugxiJpjzAlSt9GcPCM0ixAt8mhuUtNDM0xBWsuRZuP6md8MYEMxN3dF+YkyHHeSk5iyjY 5bVbrRAsrJPzZQkGswTmpoHjG/OT2FqM8N/KxtAji24HMytrkJCMaEu2ypUI1NMYNSBC9Q1p6 V0lYpjE X-Rspamd-Queue-Id: 87C8E7A6E7 X-Spamd-Result: default: False [0.47 / 15.00]; ARC_NA(0.00)[]; TO_DN_EQ_ADDR_SOME(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; MV_CASE(0.50)[]; IP_SCORE(-0.04)[ipnet: 212.227.0.0/16(-0.34), asn: 8560(0.14), country: DE(-0.01)]; MIME_GOOD(-0.10)[text/plain]; DMARC_NA(0.00)[jigsawdezign.com]; AUTH_NA(1.00)[]; NEURAL_HAM_LONG(-0.15)[-0.147,0]; TO_MATCH_ENVRCPT_SOME(0.00)[]; MX_GOOD(-0.01)[mx00.1and1.co.uk,mx01.1and1.co.uk]; NEURAL_HAM_SHORT(-0.89)[-0.892,0]; RCVD_IN_DNSWL_NONE(0.00)[13.17.227.212.list.dnswl.org : 127.0.5.0]; RCPT_COUNT_SEVEN(0.00)[7]; NEURAL_HAM_MEDIUM(-0.84)[-0.842,0]; R_SPF_NA(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.00)[]; SUBJECT_ENDS_QUESTION(1.00)[]; ASN(0.00)[asn:8560, ipnet:212.227.0.0/16, country:DE]; MID_RHS_MATCH_FROM(0.00)[]; RCVD_TLS_ALL(0.00)[]; RCVD_COUNT_TWO(0.00)[2] 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: Sun, 02 Dec 2018 00:18:55 -0000 Borrowing somewhat from PostreSQL, how about something like "vacuum"? > On 1 Dec 2018, at 20:51, Warner Losh wrote: > > On Sat, Dec 1, 2018 at 12:50 AM Rebecca Cran via freebsd-hackers < > freebsd-hackers@freebsd.org> wrote: > >> 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'? >> > > That's a good name. trim has the unfortunate collision with the perl 'trim' > function and similar things that I didn't think of when I recommended it. > It's also nicely technology agnostic. > > Warner > _______________________________________________ > freebsd-hackers@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-hackers > To unsubscribe, send any mail to "freebsd-hackers-unsubscribe@freebsd.org"