Date: Sun, 7 Jun 2020 13:21:48 +0000 (UTC) From: Benedict Reuschling <bcr@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r361891 - head/usr.bin/uniq Message-ID: <202006071321.057DLmuq088407@repo.freebsd.org>
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Author: bcr (doc committer) Date: Sun Jun 7 13:21:47 2020 New Revision: 361891 URL: https://svnweb.freebsd.org/changeset/base/361891 Log: Add EXAMPLES to cover all flags except -f since it is analogous to -s. An EXAMPLE section was adding with some basic examples that show the use of uniq(1) with various flags. Submitted by: fernape@ Approved by: bcr@ MFC after: 4 days Relnotes: yes (EXAMPLE section for uniq(1)) Differential Revision: https://reviews.freebsd.org/D25149 Modified: head/usr.bin/uniq/uniq.1 Modified: head/usr.bin/uniq/uniq.1 ============================================================================== --- head/usr.bin/uniq/uniq.1 Sun Jun 7 12:15:41 2020 (r361890) +++ head/usr.bin/uniq/uniq.1 Sun Jun 7 13:21:47 2020 (r361891) @@ -31,7 +31,7 @@ .\" From: @(#)uniq.1 8.1 (Berkeley) 6/6/93 .\" $FreeBSD$ .\" -.Dd December 15, 2019 +.Dd June 7, 2020 .Dt UNIQ 1 .Os .Sh NAME @@ -147,6 +147,56 @@ as described in .Xr environ 7 . .Sh EXIT STATUS .Ex -std +.Sh EXAMPLES +Assuming a file named cities.txt with the following content: +.Bd -literal -offset indent +Madrid +Lisbon +Madrid +.Ed +.Pp +The following command reports three different lines since identical elements +are not adjacent: +.Bd -literal -offset indent +$ uniq -u cities.txt +Madrid +Lisbon +Madrid +.Ed +.Pp +Sort the file and count the number of identical lines: +.Bd -literal -offset indent +$ sort cities.txt | uniq -c + 1 Lisbon + 2 Madrid +.Ed +.Pp +Assuming the following content for the file cities.txt: +.Bd -literal -offset indent +madrid +Madrid +Lisbon +.Ed +.Pp +Show repeated lines ignoring case sensitiveness: +.Bd -literal -offset indent +$ uniq -d -i cities.txt +madrid +.Ed +.Pp +Same as above but showing the whole group of repeated lines: +.Bd -literal -offset indent +$ uniq -D -i cities.txt +madrid +Madrid +.Ed +.Pp +Report the number of identical lines ignoring the first character of every line: +.Bd -literal -offset indent +$ uniq -s 1 -c cities.txt + 2 madrid + 1 Lisbon +.Ed .Sh COMPATIBILITY The historic .Cm \&\(pl Ns Ar number
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