From owner-svn-src-head@freebsd.org Wed Oct 21 16:30:34 2020 Return-Path: Delivered-To: svn-src-head@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id AA25644FF81; Wed, 21 Oct 2020 16:30:34 +0000 (UTC) (envelope-from fernape@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4CGbZf44TSz4VlZ; Wed, 21 Oct 2020 16:30:34 +0000 (UTC) (envelope-from fernape@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 6F5898A34; Wed, 21 Oct 2020 16:30:34 +0000 (UTC) (envelope-from fernape@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id 09LGUYvT094432; Wed, 21 Oct 2020 16:30:34 GMT (envelope-from fernape@FreeBSD.org) Received: (from fernape@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id 09LGUYUd094431; Wed, 21 Oct 2020 16:30:34 GMT (envelope-from fernape@FreeBSD.org) Message-Id: <202010211630.09LGUYUd094431@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: fernape set sender to fernape@FreeBSD.org using -f From: =?UTF-8?Q?Fernando_Apestegu=c3=ada?= Date: Wed, 21 Oct 2020 16:30:34 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r366913 - head/usr.bin/col X-SVN-Group: head X-SVN-Commit-Author: fernape X-SVN-Commit-Paths: head/usr.bin/col X-SVN-Commit-Revision: 366913 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 21 Oct 2020 16:30:34 -0000 Author: fernape (ports committer) Date: Wed Oct 21 16:30:34 2020 New Revision: 366913 URL: https://svnweb.freebsd.org/changeset/base/366913 Log: col(1): Add EXAMPLES section Add a small example. Cross reference clean up for colcrt, nroff and tbl. Reviewed by: gbe@, bcr@ Approved by: gbe@ Differential Revision: https://reviews.freebsd.org/D26864 Modified: head/usr.bin/col/col.1 Modified: head/usr.bin/col/col.1 ============================================================================== --- head/usr.bin/col/col.1 Wed Oct 21 16:04:57 2020 (r366912) +++ head/usr.bin/col/col.1 Wed Oct 21 16:30:34 2020 (r366913) @@ -31,7 +31,7 @@ .\" @(#)col.1 8.1 (Berkeley) 6/29/93 .\" $FreeBSD$ .\" -.Dd May 10, 2015 +.Dd October 21, 2020 .Dt COL 1 .Os .Sh NAME @@ -47,10 +47,6 @@ The utility filters out reverse (and half reverse) line feeds so that the output is in the correct order with only forward and half forward line feeds, and replaces white-space characters with tabs where possible. -This can be useful in processing the output of -.Xr nroff 1 -and -.Xr tbl 1 . .Pp The .Nm @@ -149,11 +145,19 @@ as described in .Xr environ 7 . .Sh EXIT STATUS .Ex -std +.Sh EXAMPLES +We can use +.Nm +to filter the output of +.Xr man 1 +and remove the backspace characters ( +.Em ^H +) before searching for some text: +.Bd -literal -offset indent +man ls | col -b | grep HISTORY +.Ed .Sh SEE ALSO -.Xr colcrt 1 , -.Xr expand 1 , -.Xr nroff 1 , -.Xr tbl 1 +.Xr expand 1 .Sh STANDARDS The .Nm