1.\" $NetBSD: split.1,v 1.13 2003/08/07 11:15:55 agc Exp $ 2.\" 3.\" Copyright (c) 1990, 1991, 1993, 1994 4.\" The Regents of the University of California. All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 3. Neither the name of the University nor the names of its contributors 15.\" may be used to endorse or promote products derived from this software 16.\" without specific prior written permission. 17.\" 18.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 19.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 22.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28.\" SUCH DAMAGE. 29.\" 30.\" @(#)split.1 8.3 (Berkeley) 4/16/94 31.\" 32.Dd July 10, 2003 33.Dt SPLIT 1 34.Os 35.Sh NAME 36.Nm split 37.Nd split a file into pieces 38.Sh SYNOPSIS 39.Nm 40.Op Fl a Ar suffix_length 41.Oo 42.Fl b Ar byte_count Ns Oo Li k|m Oc | 43.Fl l Ar line_count 44.Oc 45.Op Ar file Op Ar name 46.Sh DESCRIPTION 47The 48.Nm 49utility reads the given 50.Ar file 51and breaks it up into files of 1000 lines each. 52If 53.Ar file 54is a single dash or absent, 55.Nm 56reads from the standard input. 57.Pp 58The options are as follows: 59.Bl -tag -width Ds 60.It Fl a 61Use 62.Ar suffix_length 63letters to form the suffix of the file name. 64.It Fl b 65Create smaller files 66.Ar byte_count 67bytes in length. 68If 69.Ql k 70is appended to the number, the file is split into 71.Ar byte_count 72kilobyte pieces. 73If 74.Ql m 75is appended to the number, the file is split into 76.Ar byte_count 77megabyte pieces. 78.It Fl l 79Create smaller files 80.Ar line_count 81lines in length. 82.El 83.Pp 84If additional arguments are specified, the first is used as the name 85of the input file which is to be split. 86If a second additional argument is specified, it is used as a prefix 87for the names of the files into which the file is split. 88In this case, each file into which the file is split is named by the 89prefix followed by a lexically ordered suffix using 90.Ar suffix_length 91characters in the range 92.Dq Li a-z . 93If 94.Fl a 95is not specified, two letters are used as the suffix. 96.Pp 97If the 98.Ar name 99argument is not specified, 100.Ql x 101is used. 102.Sh STANDARDS 103The 104.Nm 105utility conforms to 106.St -p1003.1-2001 . 107.Sh HISTORY 108A 109.Nm 110command appeared in 111.At v6 . 112.Pp 113The 114.Fl a 115option was introduced in 116.Nx 2.0 . 117Before that, if 118.Ar name 119was not specified, 120.Nm 121would vary the first letter of the filename 122to increase the number of possible output files. 123The 124.Fl a 125option makes this unnecessary. 126