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1 | .\" Copyright (c) 1989, 1990, 1993 |
2 | .\" The Regents of the University of California. All rights reserved. | |
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32 | .\" @(#)column.1 8.1 (Berkeley) 6/6/93 | |
33 | .\" | |
232dc924 | 34 | .TH COLUMN 1 "October 2010" "util-linux" "User Commands" |
6cebde5c SK |
35 | .SH NAME |
36 | column - columnate lists | |
37 | .SH SYNOPSIS | |
38 | .B column | |
c927a0b9 BS |
39 | .RB [ options ] |
40 | .RI [ file ...] | |
6cebde5c | 41 | .SH DESCRIPTION |
232dc924 BS |
42 | The |
43 | .B column | |
c927a0b9 BS |
44 | utility formats its input into multiple columns. By default, rows |
45 | are filled before columns. Input is taken from \fIfile\fR, or | |
46 | otherwise from standard input. Empty lines are ignored. | |
6cebde5c SK |
47 | .PP |
48 | .SH OPTIONS | |
49 | .IP "\fB\-c, \-\-columns\fP \fIwidth\fP" | |
001a4424 | 50 | Output is formatted to a width specified as number of characters. |
6cebde5c | 51 | .IP "\fB\-t, \-\-table\fP" |
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52 | Determine the number of columns the input contains and create a table. |
53 | Columns are delimited with whitespace, by default, or with the characters | |
c927a0b9 BS |
54 | supplied using the \fB\-\-output-separator\fP option. |
55 | Table output is useful for pretty-printing. | |
a38dc987 | 56 | .IP "\fB\-s, \-\-separator\fP \fIseparators\fP" |
c927a0b9 BS |
57 | Specify the possible input item delimiters (default is whitespace). |
58 | .IP "\fB\-o, \-\-output-separator\fP \fIstring\fP" | |
59 | Specify the columns delimiter for table output (default is two spaces). | |
6cebde5c | 60 | .IP "\fB\-x, \-\-fillrows\fP" |
6dbe3af9 | 61 | Fill columns before filling rows. |
6cebde5c | 62 | .IP "\fB\-h, \-\-help\fP" |
b4362b6f | 63 | Display help text and exit. |
6cebde5c SK |
64 | .SH ENVIRONMENT |
65 | The environment variable COLUMNS is used to determine the size of | |
6dbe3af9 | 66 | the screen if no other information is available. |
6cebde5c SK |
67 | .SH EXAMPLES |
68 | .nf | |
69 | sed 's/#.*//' /etc/fstab | column -t | |
70 | .nf | |
018dfb0f SK |
71 | .SH BUGS |
72 | The util-linux version 2.23 changed | |
73 | .B \-s | |
74 | option to be non-greedy, for example: | |
75 | .PP | |
76 | .EX | |
3295cde4 | 77 | $ printf "a:b:c\\n1::3\\n" | column -t -s ':' |
018dfb0f SK |
78 | .EE |
79 | .PP | |
80 | old output: | |
81 | .EX | |
82 | a b c | |
83 | 1 3 | |
84 | .EE | |
85 | .PP | |
86 | new output (since util-linux 2.23) | |
87 | .EX | |
88 | a b c | |
89 | 1 3 | |
90 | .EE | |
6cebde5c SK |
91 | .SH "SEE ALSO" |
92 | .BR colrm (1), | |
93 | .BR ls (1), | |
94 | .BR paste (1), | |
95 | .BR sort (1) | |
96 | .SH HISTORY | |
97 | The column command appeared in 4.3BSD-Reno. | |
98 | .SH AVAILABILITY | |
601d12fb KZ |
99 | The column command is part of the util-linux package and is available from |
100 | ftp://ftp.kernel.org/pub/linux/utils/util-linux/. |