386BSD 0.1 development

[unix-history] / usr / src / usr.bin / comm / comm.1

diff --git a/usr/src/usr.bin/comm/comm.1 b/usr/src/usr.bin/comm/comm.1
index 686764a..3f74346 100644 (file)
--- a/usr/src/usr.bin/comm/comm.1
+++ b/usr/src/usr.bin/comm/comm.1
@@ -1,62 +1,94 @@
-.\" Copyright (c) 1989 The Regents of the University of California.
+.\" Copyright (c) 1989, 1990 The Regents of the University of California.

 .\" All rights reserved.
 .\"
 .\" All rights reserved.
 .\"

-.\" Redistribution and use in source and binary forms are permitted
-.\" provided that the above copyright notice and this paragraph are
-.\" duplicated in all such forms and that any documentation,
-.\" advertising materials, and other materials related to such
-.\" distribution and use acknowledge that the software was developed
-.\" by the University of California, Berkeley.  The name of the
-.\" University may not be used to endorse or promote products derived
-.\" from this software without specific prior written permission.
-.\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
-.\" IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
-.\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+.\" This code is derived from software contributed to Berkeley by
+.\" the Institute of Electrical and Electronics Engineers, Inc.

 .\"
 .\"

-.\"    @(#)comm.1      6.2 (Berkeley) %G%
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"    This product includes software developed by the University of
+.\"    California, Berkeley and its contributors.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.

 .\"
 .\"

-.TH COMM 1 ""
-.SH NAME
-comm - select or reject lines common to two files
-.SH SYNOPSIS
-\fBcomm [ \fI-123\fP ] [ \fI-\fP ] file1 file2
-.SH DESCRIPTION
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     @(#)comm.1     6.7 (Berkeley) 6/27/91
+.\"
+.Dd June 27, 1991
+.Os
+.Dt COMM 1
+.Sh NAME
+.Nm comm
+.Nd Select or reject lines common to two files
+.Sh SYNOPSIS
+.Nm comm
+.Op Fl 123
+.Ar file1 file2
+.Sh DESCRIPTION

 The
 The

-.I comm
+.Nm comm

 utility reads
 utility reads

-.I file1
+.Ar file1

 and
 and

-.I file2
-and produces a three-column output: lines only in
-.IR file1 ,
+.Ar file2 ,
+which should be
+sorted lexically, and produces three text
+columns as output: lines only in
+.Ar file1 ;

 lines only in
 lines only in

-.IR file2 ,
+.Ar file2 ;

 and lines in both files.
 and lines in both files.

-.PP
+.Pp

 The filename ``-'' means the standard input.
 The filename ``-'' means the standard input.

-.PP
+.Pp

 The following options are available:
 The following options are available:

-.TP
--1
+.Bl -tag -width Ds
+.It Fl 1

 Suppress printing of column 1.
 Suppress printing of column 1.

-.TP
--2
+.It Fl 2

 Suppress printing of column 2.
 Suppress printing of column 2.

-.TP
--3
+.It Fl 3

 Suppress printing of column 3.
 Suppress printing of column 3.

-.PP
+.El
+.Pp

 Each column will have a number of tab characters prepended to it
 equal to the number of lower numbered columns that are being printed.
 For example, if column number two is being suppressed, lines printed
 in column number one will not have any tabs preceding them, and lines
 printed in column number three will have one.
 Each column will have a number of tab characters prepended to it
 equal to the number of lower numbered columns that are being printed.
 For example, if column number two is being suppressed, lines printed
 in column number one will not have any tabs preceding them, and lines
 printed in column number three will have one.

-.PP
-.I Comm
+.Pp
+.Nm Comm

 assumes that the files are lexically sorted; all characters
 participate in line comparisons.
 assumes that the files are lexically sorted; all characters
 participate in line comparisons.

-.PP
-.I Comm
+.Pp
+.Nm Comm

 exits 0 on success, >0 if an error occurred.
 exits 0 on success, >0 if an error occurred.

-.SH "SEE ALSO"
-cmp(1), diff(1), sort(1), uniq(1)
+.Sh SEE ALSO
+.Xr cmp 1 ,
+.Xr diff 1 ,
+.Xr sort 1 ,
+.Xr uniq 1
+.Sh STANDARDS
+The
+.Nm comm
+command is expected to be POSIX 1003.2 compatible.