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182 lines
4.4 KiB
Groff
182 lines
4.4 KiB
Groff
.\" Copyright (c) 1990, 1991, 1993, 1994
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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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.\" @(#)split.1 8.3 (Berkeley) 4/16/94
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.\" $FreeBSD$
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.\"
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.Dd May 9, 2013
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.Dt SPLIT 1
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.Os
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.Sh NAME
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.Nm split
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.Nd split a file into pieces
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.Sh SYNOPSIS
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.Nm
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.Fl d
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.Op Fl l Ar line_count
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.Op Fl a Ar suffix_length
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.Op Ar file Op Ar prefix
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.Nm
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.Fl d
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.Fl b Ar byte_count Ns
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.Oo
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.Sm off
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.Cm K | k | M | m | G | g
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.Sm on
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.Oc
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.Op Fl a Ar suffix_length
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.Op Ar file Op Ar prefix
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.Nm
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.Fl d
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.Fl n Ar chunk_count
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.Op Fl a Ar suffix_length
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.Op Ar file Op Ar prefix
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.Nm
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.Fl d
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.Fl p Ar pattern
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.Op Fl a Ar suffix_length
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.Op Ar file Op Ar prefix
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.Sh DESCRIPTION
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The
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.Nm
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utility reads the given
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.Ar file
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and breaks it up into files of 1000 lines each
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(if no options are specified), leaving the
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.Ar file
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unchanged.
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If
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.Ar file
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is a single dash
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.Pq Sq Fl
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or absent,
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.Nm
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reads from the standard input.
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.Pp
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The options are as follows:
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.Bl -tag -width indent
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.It Fl a Ar suffix_length
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Use
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.Ar suffix_length
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letters to form the suffix of the file name.
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.It Fl b Ar byte_count Ns Oo
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.Sm off
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.Cm K | k | M | m | G | g
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.Sm on
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.Oc
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Create split files
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.Ar byte_count
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bytes in length.
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If
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.Cm k
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or
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.Cm K
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is appended to the number, the file is split into
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.Ar byte_count
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kilobyte pieces.
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If
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.Cm m
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or
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.Cm M
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is appended to the number, the file is split into
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.Ar byte_count
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megabyte pieces.
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If
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.Cm g
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or
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.Cm G
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is appended to the number, the file is split into
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.Ar byte_count
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gigabyte pieces.
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.It Fl d
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Use a numeric suffix instead of a alphabetic suffix.
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.It Fl l Ar line_count
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Create split files
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.Ar line_count
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lines in length.
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.It Fl n Ar chunk_count
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Split file into
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.Ar chunk_count
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smaller files.
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.It Fl p Ar pattern
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The file is split whenever an input line matches
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.Ar pattern ,
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which is interpreted as an extended regular expression.
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The matching line will be the first line of the next output file.
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This option is incompatible with the
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.Fl b
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and
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.Fl l
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options.
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.El
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.Pp
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If additional arguments are specified, the first is used as the name
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of the input file which is to be split.
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If a second additional argument is specified, it is used as a prefix
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for the names of the files into which the file is split.
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In this case, each file into which the file is split is named by the
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prefix followed by a lexically ordered suffix using
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.Ar suffix_length
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characters in the range
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.Dq Li a Ns - Ns Li z .
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If
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.Fl a
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is not specified, two letters are used as the suffix.
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.Pp
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If the
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.Ar prefix
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argument is not specified, the file is split into lexically ordered
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files named with the prefix
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.Dq Li x
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and with suffixes as above.
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.Sh ENVIRONMENT
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The
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.Ev LANG , LC_ALL , LC_CTYPE
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and
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.Ev LC_COLLATE
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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 csplit 1 ,
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.Xr re_format 7
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.Sh STANDARDS
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The
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.Nm
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utility conforms to
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.St -p1003.1-2001 .
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.Sh HISTORY
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A
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.Nm
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command appeared in
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.At v3 .
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.Sh BUGS
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The maximum line length for matching patterns is 65536.
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