101 lines
3.6 KiB
Groff
101 lines
3.6 KiB
Groff
.\" Copyright (c) 1989, 1990, 1993
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.\" The Regents of the University of California. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the University of
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.\" California, Berkeley and its contributors.
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.\" 4. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)column.1 8.1 (Berkeley) 6/6/93
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.\"
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.TH COLUMN 1 "October 2010" "util-linux" "User Commands"
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.SH NAME
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column - columnate lists
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.SH SYNOPSIS
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.B column
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.RB [ options ]
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.RI [ file ...]
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.SH DESCRIPTION
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The
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.B column
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utility formats its input into multiple columns. By default, rows
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are filled before columns. Input is taken from \fIfile\fR, or
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otherwise from standard input. Empty lines are ignored.
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.PP
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.SH OPTIONS
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.IP "\fB\-c, \-\-columns\fP \fIwidth\fP"
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Output is formatted to a width specified as number of characters.
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.IP "\fB\-t, \-\-table\fP"
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Determine the number of columns the input contains and create a table.
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Columns are delimited with whitespace, by default, or with the characters
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supplied using the \fB\-\-output-separator\fP option.
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Table output is useful for pretty-printing.
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.IP "\fB\-s, \-\-separator\fP \fIseparators\fP"
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Specify the possible input item delimiters (default is whitespace).
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.IP "\fB\-o, \-\-output-separator\fP \fIstring\fP"
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Specify the columns delimiter for table output (default is two spaces).
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.IP "\fB\-x, \-\-fillrows\fP"
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Fill columns before filling rows.
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.IP "\fB\-h, \-\-help\fP"
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Display a help text and exit.
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.SH ENVIRONMENT
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The environment variable COLUMNS is used to determine the size of
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the screen if no other information is available.
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.SH EXAMPLES
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.nf
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sed 's/#.*//' /etc/fstab | column -t
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.nf
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.SH BUGS
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The util-linux version 2.23 changed
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.B \-s
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option to be non-greedy, for example:
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.PP
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.EX
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$ printf "a:b:c\\n1::3\\n" | column -t -s ':'
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.EE
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.PP
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old output:
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.EX
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a b c
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1 3
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.EE
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.PP
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new output (since util-linux 2.23)
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.EX
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a b c
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1 3
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.EE
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.SH "SEE ALSO"
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.BR colrm (1),
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.BR ls (1),
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.BR paste (1),
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.BR sort (1)
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.SH HISTORY
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The column command appeared in 4.3BSD-Reno.
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.SH AVAILABILITY
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The column command is part of the util-linux package and is available from
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ftp://ftp.kernel.org/pub/linux/utils/util-linux/.
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