Annotation of src/usr.bin/column/column.1, Revision 1.17
1.17 ! schwarze 1: .\" $OpenBSD: column.1,v 1.16 2016/03/17 07:18:34 jmc Exp $
1.1 deraadt 2: .\" $NetBSD: column.1,v 1.3 1995/03/26 09:08:28 glass Exp $
3: .\"
4: .\" Copyright (c) 1989, 1990, 1993
5: .\" The Regents of the University of California. All rights reserved.
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8: .\" modification, are permitted provided that the following conditions
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12: .\" 2. Redistributions in binary form must reproduce the above copyright
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1.9 millert 15: .\" 3. Neither the name of the University nor the names of its contributors
1.1 deraadt 16: .\" may be used to endorse or promote products derived from this software
17: .\" without specific prior written permission.
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31: .\" @(#)column.1 8.1 (Berkeley) 6/6/93
32: .\"
1.16 jmc 33: .Dd $Mdocdate: March 17 2016 $
1.7 aaron 34: .Dt COLUMN 1
1.1 deraadt 35: .Os
36: .Sh NAME
37: .Nm column
38: .Nd columnate lists
39: .Sh SYNOPSIS
40: .Nm column
41: .Op Fl tx
42: .Op Fl c Ar columns
43: .Op Fl s Ar sep
44: .Op Ar
45: .Sh DESCRIPTION
46: The
1.4 aaron 47: .Nm
1.1 deraadt 48: utility formats its input into multiple columns.
1.17 ! schwarze 49: Each input line provides the text for one output cell.
! 50: Columns are filled before rows.
! 51: .Pp
! 52: The column width is determined by the longest input line rounded
! 53: up to the nearest tabstop; tabstops are assumed to be at multiples
! 54: of eight.
! 55: Output uses tab characters to advance to the next column.
! 56: The number of columns is chosen to fill the terminal width.
! 57: .Pp
1.1 deraadt 58: Input is taken from
59: .Ar file
1.14 jmc 60: operands or, by default, from the standard input.
1.17 ! schwarze 61: Empty lines and lines containing only whitespace are ignored.
1.1 deraadt 62: .Pp
63: The options are as follows:
64: .Bl -tag -width Ds
1.3 aaron 65: .It Fl c Ar columns
1.1 deraadt 66: Output is formatted for a display
67: .Ar columns
68: wide.
1.3 aaron 69: .It Fl s Ar sep
1.17 ! schwarze 70: Specify a set of characters to delimit columns for the
1.1 deraadt 71: .Fl t
72: option.
1.17 ! schwarze 73: It defaults to space and tab.
1.1 deraadt 74: .It Fl t
1.17 ! schwarze 75: Table mode.
! 76: Each input line provides the text for one output row.
! 77: It is split into cells using the
1.1 deraadt 78: .Fl s
79: option.
1.17 ! schwarze 80: Leading, trailing, and multiple adjacent delimiters are ignored.
! 81: Each column is as wide as the widest cell in it.
! 82: Columns are separated by two spaces.
1.1 deraadt 83: .It Fl x
1.17 ! schwarze 84: Fill rows before filling columns.
1.1 deraadt 85: .El
86: .Sh ENVIRONMENT
1.17 ! schwarze 87: .Bl -tag -width LC_CTYPE
1.1 deraadt 88: .It Ev COLUMNS
1.15 bentley 89: If set to a positive integer,
1.17 ! schwarze 90: output is formatted to the given width in display columns.
1.15 bentley 91: Otherwise,
92: .Nm
93: defaults to the terminal width, or 80 columns if the output is not a terminal.
1.17 ! schwarze 94: .It Ev LC_CTYPE
! 95: The character encoding
! 96: .Xr locale 1 .
! 97: It decides which byte sequences form characters, what their display
! 98: width is, and which characters are whitespace.
! 99: If unset or set to
! 100: .Qq C ,
! 101: .Qq POSIX ,
! 102: or an unsupported value, each byte except the tab is treated as a
! 103: character of display width 1.
1.1 deraadt 104: .El
1.13 jmc 105: .Sh EXIT STATUS
106: .Ex -std column
1.10 jmc 107: .Sh EXAMPLES
1.12 jmc 108: List the current working directory's contents, in detail,
109: with nicely formatted headings for each of the fields:
110: .Bd -literal -offset 4n
111: $ (echo "PERM LINKS OWNER GROUP SIZE MONTH DAY HH:MM/YEAR NAME" ; \e
112: ls -l | sed 1d) | column -t
113: .Ed
1.1 deraadt 114: .Sh SEE ALSO
115: .Xr colrm 1 ,
116: .Xr ls 1 ,
117: .Xr paste 1 ,
118: .Xr sort 1
119: .Sh HISTORY
120: The
121: .Nm
1.6 aaron 122: command appeared in
1.1 deraadt 123: .Bx 4.3 Reno .