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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-14 19:10:49 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-14 19:10:49 +0000 |
commit | cfe5e3905201349e9cf3f95d52ff4bd100bde37d (patch) | |
tree | d0baf160cbee3195249d095f85e52d20c21acf02 /misc-utils/look.1 | |
parent | Initial commit. (diff) | |
download | util-linux-cfe5e3905201349e9cf3f95d52ff4bd100bde37d.tar.xz util-linux-cfe5e3905201349e9cf3f95d52ff4bd100bde37d.zip |
Adding upstream version 2.39.3.upstream/2.39.3
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'misc-utils/look.1')
-rw-r--r-- | misc-utils/look.1 | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/misc-utils/look.1 b/misc-utils/look.1 new file mode 100644 index 0000000..b45090d --- /dev/null +++ b/misc-utils/look.1 @@ -0,0 +1,116 @@ +'\" t +.\" Title: look +.\" Author: [see the "AUTHOR(S)" section] +.\" Generator: Asciidoctor 2.0.20 +.\" Date: 2023-10-23 +.\" Manual: User Commands +.\" Source: util-linux 2.39.3 +.\" Language: English +.\" +.TH "LOOK" "1" "2023-10-23" "util\-linux 2.39.3" "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" "."
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