svn commit: r361891 - head/usr.bin/uniq
Benedict Reuschling
bcr at FreeBSD.org
Sun Jun 7 13:21:48 UTC 2020
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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