LOOK (1)
look
display lines beginning with a given string
SYNOPSIS
look
Fl dfa
Fl t Ar termchar
string
Ar file
DESCRIPTION
The
look
utility displays any lines in
file
which contain
string
as a prefix.
As
look
performs a binary search, the lines in
file
must be sorted (where
sort 1
got the same options -d and/or -f that
look
is invoked with).
If
file
is not specified, the file
/usr/dict/words
is used, only alphanumeric characters are compared and the case of
alphabetic characters is ignored.
Options:
-tag -width Ds
Fl d
Dictionary character set and order, i.e. only alphanumeric characters
are compared.
Fl f
Ignore the case of alphabetic characters.
Fl a
Use the alternate dictionary
/usr/dict/web2
Fl t
Specify a string termination character, i.e. only the characters
in
string
up to and including the first occurrence of
termchar
are compared.
The
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.
FILES
-tag -width /usr/dict/words -compact
Pa /usr/dict/words
the dictionary
Pa /usr/dict/web2
the alternate dictionary
SEE ALSO
COMPATIBILITY
The original manual page stated that tabs and blank characters participated
in comparisons when the
d
option was specified.
This was incorrect and the current man page matches the historic
implementation.
HISTORY
Look
appeared in Version 7 AT&T Unix.
\"-*- nroff -*-
Copyright (C) 1989-1995 Free Software Foundation, Inc.
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