fb49925999
- Mark -d as an optional flag - Add a prompt to one of the examples for consistency - Add -d to the usage message Sponsored by: Klara Inc.
220 lines
5.4 KiB
Groff
220 lines
5.4 KiB
Groff
.\" Copyright (c) 1990, 1991, 1993, 1994
|
|
.\" The Regents of the University of California. All rights reserved.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\" 3. Neither the name of the University nor the names of its contributors
|
|
.\" may be used to endorse or promote products derived from this software
|
|
.\" without specific prior written permission.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
.\" SUCH DAMAGE.
|
|
.\"
|
|
.\" @(#)split.1 8.3 (Berkeley) 4/16/94
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd April 18, 2023
|
|
.Dt SPLIT 1
|
|
.Os
|
|
.Sh NAME
|
|
.Nm split
|
|
.Nd split a file into pieces
|
|
.Sh SYNOPSIS
|
|
.Nm
|
|
.Op Fl d
|
|
.Op Fl l Ar line_count
|
|
.Op Fl a Ar suffix_length
|
|
.Op Ar file Op Ar prefix
|
|
.Nm
|
|
.Op Fl d
|
|
.Fl b Ar byte_count Ns
|
|
.Oo
|
|
.Sm off
|
|
.Cm K | k | M | m | G | g
|
|
.Sm on
|
|
.Oc
|
|
.Op Fl a Ar suffix_length
|
|
.Op Ar file Op Ar prefix
|
|
.Nm
|
|
.Op Fl d
|
|
.Fl n Ar chunk_count
|
|
.Op Fl a Ar suffix_length
|
|
.Op Ar file Op Ar prefix
|
|
.Nm
|
|
.Op Fl d
|
|
.Fl p Ar pattern
|
|
.Op Fl a Ar suffix_length
|
|
.Op Ar file Op Ar prefix
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Nm
|
|
utility reads the given
|
|
.Ar file
|
|
and breaks it up into files of 1000 lines each
|
|
(if no options are specified), leaving the
|
|
.Ar file
|
|
unchanged.
|
|
If
|
|
.Ar file
|
|
is a single dash
|
|
.Pq Sq Fl
|
|
or absent,
|
|
.Nm
|
|
reads from the standard input.
|
|
.Pp
|
|
The options are as follows:
|
|
.Bl -tag -width indent
|
|
.It Fl a Ar suffix_length
|
|
Use
|
|
.Ar suffix_length
|
|
letters to form the suffix of the file name.
|
|
.It Fl b Ar byte_count Ns Oo
|
|
.Sm off
|
|
.Cm K | k | M | m | G | g
|
|
.Sm on
|
|
.Oc
|
|
Create split files
|
|
.Ar byte_count
|
|
bytes in length.
|
|
If
|
|
.Cm k
|
|
or
|
|
.Cm K
|
|
is appended to the number, the file is split into
|
|
.Ar byte_count
|
|
kilobyte pieces.
|
|
If
|
|
.Cm m
|
|
or
|
|
.Cm M
|
|
is appended to the number, the file is split into
|
|
.Ar byte_count
|
|
megabyte pieces.
|
|
If
|
|
.Cm g
|
|
or
|
|
.Cm G
|
|
is appended to the number, the file is split into
|
|
.Ar byte_count
|
|
gigabyte pieces.
|
|
.It Fl d
|
|
Use a numeric suffix instead of a alphabetic suffix.
|
|
.It Fl l Ar line_count
|
|
Create split files
|
|
.Ar line_count
|
|
lines in length.
|
|
.It Fl n Ar chunk_count
|
|
Split file into
|
|
.Ar chunk_count
|
|
smaller files.
|
|
The first n - 1 files will be of size (size of
|
|
.Ar file
|
|
/
|
|
.Ar chunk_count
|
|
)
|
|
and the last file will contain the remaining bytes.
|
|
.It Fl p Ar pattern
|
|
The file is split whenever an input line matches
|
|
.Ar pattern ,
|
|
which is interpreted as an extended regular expression.
|
|
The matching line will be the first line of the next output file.
|
|
This option is incompatible with the
|
|
.Fl b
|
|
and
|
|
.Fl l
|
|
options.
|
|
.El
|
|
.Pp
|
|
If additional arguments are specified, the first is used as the name
|
|
of the input file which is to be split.
|
|
If a second additional argument is specified, it is used as a prefix
|
|
for the names of the files into which the file is split.
|
|
In this case, each file into which the file is split is named by the
|
|
prefix followed by a lexically ordered suffix using
|
|
.Ar suffix_length
|
|
characters in the range
|
|
.Dq Li a Ns - Ns Li z .
|
|
If
|
|
.Fl a
|
|
is not specified, two letters are used as the suffix.
|
|
.Pp
|
|
If the
|
|
.Ar prefix
|
|
argument is not specified, the file is split into lexically ordered
|
|
files named with the prefix
|
|
.Dq Li x
|
|
and with suffixes as above.
|
|
.Sh ENVIRONMENT
|
|
The
|
|
.Ev LANG , LC_ALL , LC_CTYPE
|
|
and
|
|
.Ev LC_COLLATE
|
|
environment variables affect the execution of
|
|
.Nm
|
|
as described in
|
|
.Xr environ 7 .
|
|
.Sh EXIT STATUS
|
|
.Ex -std
|
|
.Sh EXAMPLES
|
|
Split input into as many files as needed, so that each file contains at most 2
|
|
lines:
|
|
.Bd -literal -offset indent
|
|
$ echo -e "first line\\nsecond line\\nthird line\\nforth line" | split -l2
|
|
.Ed
|
|
.Pp
|
|
Split input in chunks of 10 bytes using numeric prefixes for file names.
|
|
This generates two files of 10 bytes (x00 and x01) and a third file (x02) with the
|
|
remaining 2 bytes:
|
|
.Bd -literal -offset indent
|
|
$ echo -e "This is 22 bytes long" | split -d -b10
|
|
.Ed
|
|
.Pp
|
|
Split input generating 6 files:
|
|
.Bd -literal -offset indent
|
|
$ echo -e "This is 22 bytes long" | split -n 6
|
|
.Ed
|
|
.Pp
|
|
Split input creating a new file every time a line matches the regular expression
|
|
for a
|
|
.Dq t
|
|
followed by either
|
|
.Dq a
|
|
or
|
|
.Dq u
|
|
thus creating two files:
|
|
.Bd -literal -offset indent
|
|
$ echo -e "stack\\nstock\\nstuck\\nanother line" | split -p 't[au]'
|
|
.Ed
|
|
.Sh SEE ALSO
|
|
.Xr csplit 1 ,
|
|
.Xr re_format 7
|
|
.Sh STANDARDS
|
|
The
|
|
.Nm
|
|
utility conforms to
|
|
.St -p1003.1-2001 .
|
|
.Sh HISTORY
|
|
A
|
|
.Nm
|
|
command appeared in
|
|
.At v3 .
|
|
.Pp
|
|
Before
|
|
.Fx 14 ,
|
|
pattern and line matching only operated on lines shorter than 65,536 bytes.
|