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+'\" t
+.\"     Title: look
+.\"    Author: [see the "AUTHOR(S)" section]
+.\" Generator: Asciidoctor 2.0.15
+.\"      Date: 2022-05-11
+.\"    Manual: User Commands
+.\"    Source: util-linux 2.38.1
+.\"  Language: English
+.\"
+.TH "LOOK" "1" "2022-05-11" "util\-linux 2.38.1" "User Commands"
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.ss \n[.ss] 0
+.nh
+.ad l
+.de URL
+\fI\\$2\fP <\\$1>\\$3
+..
+.als MTO URL
+.if \n[.g] \{\
+.  mso www.tmac
+.  am URL
+.    ad l
+.  .
+.  am MTO
+.    ad l
+.  .
+.  LINKSTYLE blue R < >
+.\}
+.SH "NAME"
+look \- display lines beginning with a given string
+.SH "SYNOPSIS"
+.sp
+\fBlook\fP [options] \fIstring\fP [\fIfile\fP]
+.SH "DESCRIPTION"
+.sp
+The \fBlook\fP utility displays any lines in \fIfile\fP which contain \fIstring\fP as a prefix. As \fBlook\fP performs a binary search, the lines in \fIfile\fP must be sorted (where \fBsort\fP(1) was given the same options \fB\-d\fP and/or \fB\-f\fP that \fBlook\fP is invoked with).
+.sp
+If \fIfile\fP is not specified, the file \fI/usr/share/dict/words\fP is used, only alphanumeric characters are compared and the case of alphabetic characters is ignored.
+.SH "OPTIONS"
+.sp
+\fB\-a\fP, \fB\-\-alternative\fP
+.RS 4
+Use the alternative dictionary file.
+.RE
+.sp
+\fB\-d\fP, \fB\-\-alphanum\fP
+.RS 4
+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.
+.sp
+Note that blanks have been added to dictionary character set for compatibility with \fBsort \-d\fP command since version 2.28.
+.RE
+.sp
+\fB\-f\fP, \fB\-\-ignore\-case\fP
+.RS 4
+Ignore the case of alphabetic characters. This is on by default if no file is specified.
+.RE
+.sp
+\fB\-t\fP, \fB\-\-terminate\fP \fIcharacter\fP
+.RS 4
+Specify a string termination character, i.e., only the characters in \fIstring\fP up to and including the first occurrence of \fIcharacter\fP are compared.
+.RE
+.sp
+\fB\-h\fP, \fB\-\-help\fP
+.RS 4
+Display help text and exit.
+.RE
+.sp
+\fB\-V\fP, \fB\-\-version\fP
+.RS 4
+Print version and exit.
+.RE
+.sp
+The \fBlook\fP 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"
+.sp
+\fBWORDLIST\fP
+.RS 4
+Path to a dictionary file. The environment variable has greater priority than the dictionary path defined in the \fBFILES\fP segment.
+.RE
+.SH "FILES"
+.sp
+\fI/usr/share/dict/words\fP
+.RS 4
+the dictionary
+.RE
+.sp
+\fI/usr/share/dict/web2\fP
+.RS 4
+the alternative dictionary
+.RE
+.SH "HISTORY"
+.sp
+The \fBlook\fP utility appeared in Version 7 AT&T Unix.
+.SH "EXAMPLES"
+.sp
+.if n .RS 4
+.nf
+.fam C
+sort \-d /etc/passwd \-o /tmp/look.dict
+look \-t: root:foobar /tmp/look.dict
+.fam
+.fi
+.if n .RE
+.SH "SEE ALSO"
+.sp
+\fBgrep\fP(1),
+\fBsort\fP(1)
+.SH "REPORTING BUGS"
+.sp
+For bug reports, use the issue tracker at \c
+.URL "https://github.com/util\-linux/util\-linux/issues" "" "."
+.SH "AVAILABILITY"
+.sp
+The \fBlook\fP command is part of the util\-linux package which can be downloaded from \c
+.URL "https://www.kernel.org/pub/linux/utils/util\-linux/" "Linux Kernel Archive" "."
+\ No newline at end of file