From owner-freebsd-questions@FreeBSD.ORG Sun Feb 20 00:44:37 2011 Return-Path: Delivered-To: freebsd-questions@FreeBSD.ORG Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id C01DE1065694 for ; Sun, 20 Feb 2011 00:44:37 +0000 (UTC) (envelope-from sterling@camdensoftware.com) Received: from wh2.interactivevillages.com (wh2.interactivevillages.com [75.125.250.34]) by mx1.freebsd.org (Postfix) with ESMTP id 8E1268FC16 for ; Sun, 20 Feb 2011 00:44:37 +0000 (UTC) Received: from c-24-22-230-24.hsd1.wa.comcast.net ([24.22.230.24] helo=_HOSTNAME_) by wh2.interactivevillages.com with esmtpsa (TLSv1:AES256-SHA:256) (Exim 4.69) (envelope-from ) id 1PqxPb-0003kz-Hn for freebsd-questions@FreeBSD.ORG; Sat, 19 Feb 2011 16:44:32 -0800 Received: by _HOSTNAME_ (sSMTP sendmail emulation); Sat, 19 Feb 2011 16:44:32 -0800 Date: Sat, 19 Feb 2011 16:44:32 -0800 From: Chip Camden To: FreeBSD Mailing List Message-ID: <20110220004432.GD2495@libertas.local.camdensoftware.com> Mail-Followup-To: FreeBSD Mailing List References: <20110219233736.GA20393@thought.org> <20110219235240.GA2495@libertas.local.camdensoftware.com> <20110220002300.GA21231@thought.org> <20110220004200.GC2495@libertas.local.camdensoftware.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="HWvPVVuAAfuRc6SZ" Content-Disposition: inline In-Reply-To: <20110220004200.GC2495@libertas.local.camdensoftware.com> User-Agent: Mutt/1.4.2.3i Company: Camden Software Consulting URL: http://camdensoftware.com X-PGP-Key: http://pgp.mit.edu:11371/pks/lookup?search=0xD6DBAF91 X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - wh2.interactivevillages.com X-AntiAbuse: Original Domain - freebsd.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - camdensoftware.com Cc: Subject: Re: variable line-display pager? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 20 Feb 2011 00:44:37 -0000 --HWvPVVuAAfuRc6SZ Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Quoth Chip Camden on Saturday, 19 February 2011: > Quoth Gary Kline on Saturday, 19 February 2011: > > On Sat, Feb 19, 2011 at 03:52:40PM -0800, Chip Camden wrote: > > > Quoth Gary Kline on Saturday, 19 February 2011: > > > > Need help findind a way of using existing unix utilities to diplay > > > > chunks of N lines of a text files. Here N <=3D the number of lines= in > > > > the file. > > > >=20 > > > > For instance, say that my xterm/console/"Konsole" is 80x53 lines. > > > > My text file is around 200 lines long and I want to use more or less > > > > or some GUI pager to display only 15 lines at one time. Tapping th= e=20 > > > > space bar would display another 15 lines and so on until EOF. Is > > > > there a way of doing with with flags of the existing /usr/bin/less > > > > or is there some other pager that I can build? > > > >=20 > > > > thanks, > > > >=20 > > > > gary > > > >=20 > > > >=20 > > > >=20 > > > > --=20 > > > > Gary Kline kline@thought.org http://www.thought.org Public Serv= ice Unix > > > > Journey Toward the Dawn, E-Book: http://www.thought.org > > > > The 7.98a release of Jottings: http://jottings.thought.org > > > >=20 > > > > _______________________________________________ > > > > freebsd-questions@freebsd.org mailing list > > > > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > > > > To unsubscribe, send any mail to "freebsd-questions-unsubscribe@fre= ebsd.org" > > >=20 > > > The -z option is supposed to do this: > > >=20 > > > less -z15 file.txt > > >=20 > > > But it appears to work only on the second and successive pages. > >=20 > >=20 > >=20 > > Oh. So _that's_ why. I tried less -m 15 [because the man pages > > sais z=3DN; i just tried what you did with -z15. Full page first > > time, 15 lines each spacebar thereafter. > >=20 > > Zank you, Sir Chip.. Anybody else? I'm loathe to use anything gui, > > but here's where I'll be happy w ith something GUI THat i can > > squeeze my "15" or small-n lines' worth into. Can'y believe that > > there is nothing for all theses years.... I mean, geewhiz! > > Any idea where I Should look in ports or how to google this? > >=20 > >=20 > > gary > >=20 > > >=20 > > > --=20 > > > Sterling (Chip) Camden | sterling@camdensoftware.com | 2048D/3A978E4F > > > http://chipsquips.com | http://camdensoftware.com | http://chipsti= ps.com > >=20 > >=20 > >=20 > > --=20 > > Gary Kline kline@thought.org http://www.thought.org Public Service = Unix > > Journey Toward the Dawn, E-Book: http://www.thought.org > > The 7.98a release of Jottings: http://jottings.thought.org > >=20 > > _______________________________________________ > > freebsd-questions@freebsd.org mailing list > > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > > To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd= .org" >=20 > Is this sort of what you're looking for? >=20 > #!/usr/bin/env ruby > require 'optparse' >=20 > pagesize =3D 15 >=20 > optparse =3D OptionParser.new do |opts| > opts.banner =3D 'usage: npg [-n pagesize] file...' >=20 > opts.on('-n', '--numlines pagesize', 'Specify page size in number of li= nes') do |n| > pagesize =3D n.to_i > end >=20 > end >=20 > begin > optparse.parse! > rescue OptionParser::InvalidOption, OptionParser::MissingArgument =3D> e > puts e > puts optparse > exit 1 > end >=20 > loop do > pagesize.times do > if line =3D gets > puts line > else > exit > end > end > print "More..." > STDIN.getc > end >=20 > --=20 > Sterling (Chip) Camden | sterling@camdensoftware.com | 2048D/3A978E4F > http://chipsquips.com | http://camdensoftware.com | http://chipstips.c= om Oops -- code corrected above. --=20 Sterling (Chip) Camden | sterling@camdensoftware.com | 2048D/3A978E4F http://chipsquips.com | http://camdensoftware.com | http://chipstips.com --HWvPVVuAAfuRc6SZ Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (FreeBSD) iQEcBAEBAgAGBQJNYGPwAAoJEIpckszW26+RGN4H+gIZxb1LN3fZPBSXzYR0ic0l cmo+p18mmV4WHB3JX8+Dm9jnS4qvVEsgpZNDORhm00y0vYsHc8hT4Qik6VdaIIHi yH5lEalcChioSECk2sNts0U1Bhfp9P61WOrDSDQUyReShWkQKya/phEn5XK4Fy4A 9dWZT6QPJU0Nlgm+7hPRb65CLwD4fiGqKoMdBhLoVfZG0LVdaJ8X9z5ZmecqtSdU o6SFceBZdvRcs6eBhS4ddjEEUg/t4qxRhVh3FMsSNaZrS2Pl50nyTIHMm9de+iho VsYW7NOX2Ht1qDY4wSz9gWwcaDTPDDDNxAtPwSL0VelwDOha7PJ06KA37x+nW7A= =6L3F -----END PGP SIGNATURE----- --HWvPVVuAAfuRc6SZ--