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Annotation of src/usr.bin/comm/comm.1, Revision 1.1

1.1     ! deraadt     1: .\"    $NetBSD: comm.1,v 1.4 1995/03/26 09:25:50 glass Exp $
        !             2: .\"
        !             3: .\" Copyright (c) 1989, 1990, 1993
        !             4: .\"    The Regents of the University of California.  All rights reserved.
        !             5: .\"
        !             6: .\" This code is derived from software contributed to Berkeley by
        !             7: .\" the Institute of Electrical and Electronics Engineers, Inc.
        !             8: .\"
        !             9: .\" Redistribution and use in source and binary forms, with or without
        !            10: .\" modification, are permitted provided that the following conditions
        !            11: .\" are met:
        !            12: .\" 1. Redistributions of source code must retain the above copyright
        !            13: .\"    notice, this list of conditions and the following disclaimer.
        !            14: .\" 2. Redistributions in binary form must reproduce the above copyright
        !            15: .\"    notice, this list of conditions and the following disclaimer in the
        !            16: .\"    documentation and/or other materials provided with the distribution.
        !            17: .\" 3. All advertising materials mentioning features or use of this software
        !            18: .\"    must display the following acknowledgement:
        !            19: .\"    This product includes software developed by the University of
        !            20: .\"    California, Berkeley and its contributors.
        !            21: .\" 4. Neither the name of the University nor the names of its contributors
        !            22: .\"    may be used to endorse or promote products derived from this software
        !            23: .\"    without specific prior written permission.
        !            24: .\"
        !            25: .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            26: .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            27: .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            28: .\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            29: .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            30: .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            31: .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            32: .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            33: .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            34: .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            35: .\" SUCH DAMAGE.
        !            36: .\"
        !            37: .\"     @(#)comm.1     8.1 (Berkeley) 6/6/93
        !            38: .\"
        !            39: .Dd June 6, 1993
        !            40: .Os
        !            41: .Dt COMM 1
        !            42: .Sh NAME
        !            43: .Nm comm
        !            44: .Nd select or reject lines common to two files
        !            45: .Sh SYNOPSIS
        !            46: .Nm comm
        !            47: .Op Fl 123
        !            48: .Ar file1 file2
        !            49: .Sh DESCRIPTION
        !            50: The
        !            51: .Nm comm
        !            52: utility reads
        !            53: .Ar file1
        !            54: and
        !            55: .Ar file2 ,
        !            56: which should be
        !            57: sorted lexically, and produces three text
        !            58: columns as output: lines only in
        !            59: .Ar file1 ;
        !            60: lines only in
        !            61: .Ar file2 ;
        !            62: and lines in both files.
        !            63: .Pp
        !            64: The filename ``-'' means the standard input.
        !            65: .Pp
        !            66: The following options are available:
        !            67: .Bl -tag -width Ds
        !            68: .It Fl 1
        !            69: Suppress printing of column 1.
        !            70: .It Fl 2
        !            71: Suppress printing of column 2.
        !            72: .It Fl 3
        !            73: Suppress printing of column 3.
        !            74: .El
        !            75: .Pp
        !            76: Each column will have a number of tab characters prepended to it
        !            77: equal to the number of lower numbered columns that are being printed.
        !            78: For example, if column number two is being suppressed, lines printed
        !            79: in column number one will not have any tabs preceding them, and lines
        !            80: printed in column number three will have one.
        !            81: .Pp
        !            82: .Nm Comm
        !            83: assumes that the files are lexically sorted; all characters
        !            84: participate in line comparisons.
        !            85: .\" .Sh ENVIRONMENT
        !            86: .\" .Bl -tag -width indent
        !            87: .\" .It Ev LANG
        !            88: .\" .It Ev LC_ALL
        !            89: .\" .It Ev LC_CTYPE
        !            90: .\" .It Ev LC_COLLATE
        !            91: .\" .It Ev LC_MESSAGES
        !            92: .\" .El
        !            93: .Sh DIAGNOSTICS
        !            94: .Nm Comm
        !            95: exits 0 on success, >0 if an error occurred.
        !            96: .Sh SEE ALSO
        !            97: .Xr cmp 1 ,
        !            98: .Xr diff 1 ,
        !            99: .Xr sort 1 ,
        !           100: .Xr uniq 1
        !           101: .Sh STANDARDS
        !           102: The
        !           103: .Nm comm
        !           104: utility conforms to
        !           105: .St -p1003.2-92 .