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

1.1     ! deraadt     1: .\"    $NetBSD: expand.1,v 1.3 1995/09/02 06:19:45 jtc Exp $
        !             2: .\"
        !             3: .\" Copyright (c) 1980, 1990, 1993
        !             4: .\"    The Regents of the University of California.  All rights reserved.
        !             5: .\"
        !             6: .\" Redistribution and use in source and binary forms, with or without
        !             7: .\" modification, are permitted provided that the following conditions
        !             8: .\" are met:
        !             9: .\" 1. Redistributions of source code must retain the above copyright
        !            10: .\"    notice, this list of conditions and the following disclaimer.
        !            11: .\" 2. Redistributions in binary form must reproduce the above copyright
        !            12: .\"    notice, this list of conditions and the following disclaimer in the
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        !            14: .\" 3. All advertising materials mentioning features or use of this software
        !            15: .\"    must display the following acknowledgement:
        !            16: .\"    This product includes software developed by the University of
        !            17: .\"    California, Berkeley and its contributors.
        !            18: .\" 4. Neither the name of the University nor the names of its contributors
        !            19: .\"    may be used to endorse or promote products derived from this software
        !            20: .\"    without specific prior written permission.
        !            21: .\"
        !            22: .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            23: .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            24: .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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        !            27: .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            28: .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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        !            31: .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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        !            33: .\"
        !            34: .\"    @(#)expand.1    8.1 (Berkeley) 6/9/93
        !            35: .\"
        !            36: .Dd June 9, 1993
        !            37: .Dt EXPAND 1
        !            38: .Os BSD 4
        !            39: .Sh NAME
        !            40: .Nm expand ,
        !            41: .Nm unexpand
        !            42: .Nd expand tabs to spaces, and vice versa
        !            43: .Sh SYNOPSIS
        !            44: .Nm expand
        !            45: .Op Fl Ns Ar tabstop
        !            46: .Op Fl Ns Ar tab1,tab2,...,tabn
        !            47: .Ar
        !            48: .Nm unexpand
        !            49: .Op Fl a
        !            50: .Ar
        !            51: .Sh DESCRIPTION
        !            52: .Nm Expand
        !            53: processes the named files or the standard input writing
        !            54: the standard output with tabs changed into blanks.
        !            55: Backspace characters are preserved into the output and decrement
        !            56: the column count for tab calculations.
        !            57: .Nm Expand
        !            58: is useful for pre-processing character files
        !            59: (before sorting, looking at specific columns, etc.) that
        !            60: contain tabs.
        !            61: .Pp
        !            62: If a single
        !            63: .Ar tabstop
        !            64: argument is given, then tabs are set
        !            65: .Ar tabstop
        !            66: spaces apart instead of the default 8.
        !            67: If multiple tabstops are given then the tabs are set at those
        !            68: specific columns.
        !            69: .Pp
        !            70: .Nm Unexpand
        !            71: puts tabs back into the data from the standard input or the named
        !            72: files and writes the result on the standard output.
        !            73: .Pp
        !            74: Option (with
        !            75: .Nm unexpand
        !            76: only):
        !            77: .Bl -tag -width flag
        !            78: .It Fl a
        !            79: By default, only leading blanks and tabs
        !            80: are reconverted to maximal strings of tabs.  If the
        !            81: .Fl a
        !            82: option is given, then tabs are inserted whenever they would compress the
        !            83: resultant file by replacing two or more characters.
        !            84: .El
        !            85: .Sh HISTORY
        !            86: The
        !            87: .Nm expand
        !            88: command appeared in
        !            89: .Bx 3.0 .