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diff --git a/misc-utils/look.1 b/misc-utils/look.1 new file mode 100644 index 0000000..2de4f8d --- /dev/null +++ b/misc-utils/look.1 @@ -0,0 +1,123 @@ +.\" Copyright (c) 1990, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" 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. +.\" +.\" 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. +.\" +.\" @(#)look.1 8.1 (Berkeley) 6/14/93 +.\" +.TH LOOK 1 "June 2011" "util-linux" "User Commands" +.SH NAME +look \- display lines beginning with a given string +.SH SYNOPSIS +.B look +[options] +.IR "string " [ file ] +.SH DESCRIPTION +The +.B look +utility displays any lines in +.I file +which contain +.IR string . +As +.B look +performs a binary search, the lines in +.I file +must be sorted (where +.BR sort (1) +was given the same options +.BR "\-d " and/or " \-f " that +.B look +is invoked with). +.PP +If +.I file +is not specified, the file +.I /usr/share/dict/words +is used, only alphanumeric characters are compared and the case of +alphabetic characters is ignored. +.SH OPTIONS +.TP +.BR \-a , " \-\-alternative" +Use the alternative dictionary file. +.TP +.BR \-d , " \-\-alphanum" +Use normal dictionary character set and order, i.e., only blanks and +alphanumeric characters are compared. This is on by default if no file is +specified. + +Note that blanks have been added to dictionary character set for +compatibility with \fBsort \-d\fR command since version 2.28. +.TP +.BR \-f , " \-\-ignore\-case" +Ignore the case of alphabetic characters. This is on by default if no file is +specified. +.TP +.BR \-t , " \-\-terminate " \fIcharacter\fR +Specify a string termination character, i.e., only the characters +in \fIstring\fR up to and including the first occurrence of \fIcharacter\fR +are compared. +.TP +.BR \-V , " \-\-version" +Display version information and exit. +.TP +.BR \-h , " \-\-help" +Display help text and exit. +.PP +The +.B look +utility exits 0 if one or more lines were found and displayed, 1 if +no lines were found, and >1 if an error occurred. +.SH ENVIRONMENT +.TP +.B WORDLIST +Path to a dictionary file. The environment variable has greater priority +than the dictionary path defined in FILES segment. +.SH FILES +.IP "\fB/usr/share/dict/words\fR" 4 +the dictionary +.IP "\fB/usr/share/dict/web2\fR" 4 +the alternative dictionary +.SH HISTORY +The +.B look +utility appeared in Version 7 AT&T Unix. +.SH EXAMPLES +.RS +.nf +sort \-d /etc/passwd \-o /tmp/look.dict +look \-t: root:foobar /tmp/look.dict +.fi +.RE +.SH SEE ALSO +.BR grep (1), +.BR sort (1) +.SH AVAILABILITY +The look command is part of the util-linux package and is available from +https://www.kernel.org/pub/linux/utils/util-linux/. |