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col(1): Add EXAMPLES section

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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
This commit is contained in:
fernape 2020-10-21 16:30:34 +00:00
parent 7d8530e564
commit 8d00f46138
1 changed files with 13 additions and 9 deletions
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22
usr.bin/col/col.1
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@ -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