From e6e3cf55d33a627adc59fc90eaced9b20dd639ba Mon Sep 17 00:00:00 2001 From: Benedict Reuschling Date: Sun, 7 Jun 2020 13:21:47 +0000 Subject: [PATCH] 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 --- usr.bin/uniq/uniq.1 | 52 ++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 51 insertions(+), 1 deletion(-) diff --git a/usr.bin/uniq/uniq.1 b/usr.bin/uniq/uniq.1 index bcb6d4508f9f..c279336ecdc7 100644 --- a/usr.bin/uniq/uniq.1 +++ b/usr.bin/uniq/uniq.1 @@ -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