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Annotation of src/usr.bin/look/look.1, Revision 1.8

1.8     ! aaron       1: .\"    $OpenBSD: look.1,v 1.7 2000/03/06 03:17:39 aaron Exp $
1.1       deraadt     2: .\"    $NetBSD: look.1,v 1.3 1994/12/23 01:10:59 jtc Exp $
                      3: .\"
                      4: .\" Copyright (c) 1990, 1993
                      5: .\"    The Regents of the University of California.  All rights reserved.
                      6: .\"
                      7: .\" Redistribution and use in source and binary forms, with or without
                      8: .\" modification, are permitted provided that the following conditions
                      9: .\" are met:
                     10: .\" 1. Redistributions of source code must retain the above copyright
                     11: .\"    notice, this list of conditions and the following disclaimer.
                     12: .\" 2. Redistributions in binary form must reproduce the above copyright
                     13: .\"    notice, this list of conditions and the following disclaimer in the
                     14: .\"    documentation and/or other materials provided with the distribution.
                     15: .\" 3. All advertising materials mentioning features or use of this software
                     16: .\"    must display the following acknowledgement:
                     17: .\"    This product includes software developed by the University of
                     18: .\"    California, Berkeley and its contributors.
                     19: .\" 4. Neither the name of the University nor the names of its contributors
                     20: .\"    may be used to endorse or promote products derived from this software
                     21: .\"    without specific prior written permission.
                     22: .\"
                     23: .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     24: .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     25: .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     26: .\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     27: .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     28: .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     29: .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     30: .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     31: .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     32: .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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                     34: .\"
                     35: .\"     @(#)look.1     8.1 (Berkeley) 6/14/93
                     36: .\"
                     37: .Dd June 14, 1993
                     38: .Dt LOOK 1
                     39: .Os
                     40: .Sh NAME
                     41: .Nm look
                     42: .Nd display lines beginning with a given string
                     43: .Sh SYNOPSIS
                     44: .Nm look
                     45: .Op Fl df
                     46: .Op Fl t Ar termchar
                     47: .Ar string
                     48: .Op Ar file
                     49: .Sh DESCRIPTION
1.4       aaron      50: The
                     51: .Nm
1.1       deraadt    52: utility displays any lines in
                     53: .Ar file
                     54: which contain
                     55: .Ar string
                     56: as a prefix.
                     57: As
1.4       aaron      58: .Nm
1.1       deraadt    59: performs a binary search, the lines in
                     60: .Ar file
                     61: must be sorted.
                     62: .Pp
                     63: If
                     64: .Ar file
                     65: is not specified, the file
                     66: .Pa /usr/share/dict/words
1.8     ! aaron      67: is used.
        !            68: Only alphanumeric characters are compared and the case of
1.1       deraadt    69: alphabetic characters is ignored.
                     70: .Pp
1.6       aaron      71: The options are as follows:
1.1       deraadt    72: .Bl -tag -width Ds
                     73: .It Fl d
1.8     ! aaron      74: Dictionary character set and order, i.e., only alphanumeric characters
1.1       deraadt    75: are compared.
                     76: .It Fl f
                     77: Ignore the case of alphabetic characters.
1.3       aaron      78: .It Fl t Ar termchar
1.8     ! aaron      79: Specify a string termination character, i.e., only the characters
1.1       deraadt    80: in
                     81: .Ar string
                     82: up to and including the first occurrence of
                     83: .Ar termchar
                     84: are compared.
                     85: .El
                     86: .Pp
                     87: The
1.4       aaron      88: .Nm
1.1       deraadt    89: utility exits 0 if one or more lines were found and displayed,
1.8     ! aaron      90: 1 if no lines were found, or >1 if an error occurred.
1.1       deraadt    91: .Sh FILES
                     92: .Bl -tag -width /usr/share/dict/words -compact
                     93: .It Pa /usr/share/dict/words
                     94: the dictionary
                     95: .El
                     96: .Sh SEE ALSO
                     97: .Xr grep 1 ,
                     98: .Xr sort 1
                     99: .Sh COMPATIBILITY
                    100: The original manual page stated that tabs and blank characters participated
                    101: in comparisons when the
                    102: .Fl d
                    103: option was specified.
                    104: This was incorrect and the current man page matches the historic
                    105: implementation.
                    106: .Sh HISTORY
1.7       aaron     107: The
1.4       aaron     108: .Nm
1.7       aaron     109: command appeared in
1.5       aaron     110: .At v7 .