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93 lines
2.8 KiB
Groff
93 lines
2.8 KiB
Groff
.\" Copyright (c) 1980, 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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.\" 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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.\" @(#)colrm.1 8.1 (Berkeley) 6/6/93
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.\" $FreeBSD$
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.\"
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.Dd June 6, 2015
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.Dt COLRM 1
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.Os
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.Sh NAME
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.Nm colrm
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.Nd remove columns from a file
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.Sh SYNOPSIS
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.Nm
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.Op Ar start Op Ar stop
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.Sh DESCRIPTION
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The
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.Nm
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utility removes selected columns from the lines of a file.
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A column is defined as a single character in a line.
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Input is read from the standard input.
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Output is written to the standard output.
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.Pp
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If only the
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.Ar start
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column is specified, columns numbered less than the
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.Ar start
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column will be written.
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If both
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.Ar start
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and
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.Ar stop
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columns are specified, columns numbered less than the
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.Ar start
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column
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or greater than the
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.Ar stop
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column will be written.
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Column numbering starts with one, not zero.
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.Pp
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Tab characters increment the column count to the next multiple of eight.
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Backspace characters decrement the column count by one.
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.Sh ENVIRONMENT
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The
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.Ev LANG , LC_ALL
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and
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.Ev LC_CTYPE
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environment variables affect the execution of
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.Nm
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as described in
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.Xr environ 7 .
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.Sh EXIT STATUS
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.Ex -std
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.Sh SEE ALSO
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.Xr awk 1 ,
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.Xr column 1 ,
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.Xr cut 1 ,
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.Xr paste 1
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.Sh HISTORY
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The
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.Nm
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utility first appeared in
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.Bx 1 .
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.Sh AUTHORS
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.An Jeff Schriebman
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wrote the original version of
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.Nm
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in November 1974.
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