1.\" Copyright (c) 1990, 1991, 1993, 1994 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 3. All advertising materials mentioning features or use of this software 13.\" must display the following acknowledgement: 14.\" This product includes software developed by the University of 15.\" California, Berkeley and its contributors. 16.\" 4. Neither the name of the University nor the names of its contributors 17.\" may be used to endorse or promote products derived from this software 18.\" without specific prior written permission. 19.\" 20.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" 32.\" @(#)split.1 8.3 (Berkeley) 4/16/94 33.\" $Id$ 34.\" 35.Dd April 16, 1994 36.Dt SPLIT 1 37.Os 38.Sh NAME 39.Nm split 40.Nd split a file into pieces 41.Sh SYNOPSIS 42.Nm split 43.Op Fl b Ar byte_count[k|m] 44.Op Fl l Ar line_count 45.Op Fl p Ar pattern 46.Op Ar file Op Ar name 47.Sh DESCRIPTION 48The 49.Nm split 50utility reads the given 51.Ar file 52(or standard input if no file is specified) 53and breaks it up into files of 1000 lines each. 54.Pp 55The options are as follows: 56.Bl -tag -width Ds 57.It Fl b 58Create smaller files 59.Ar byte_count 60bytes in length. 61If 62.Dq Li k 63is appended to the number, the file is split into 64.Ar byte_count 65kilobyte pieces. 66If 67.Dq Li m 68is appended to the number, the file is split into 69.Ar byte_count 70megabyte pieces. 71.It Fl l 72Create smaller files 73.Ar n 74lines in length. 75.It Fl p Ar pattern 76The file is split whenever an input line matches 77.Ar pattern , 78which is interpreted as an extended regular expression. 79The matching line will be the first line of the next output file. 80This option is incompatible with the 81.Fl b 82and 83.Fl l 84options. 85.El 86.Pp 87If additional arguments are specified, the first is used as the name 88of the input file which is to be split. 89If a second additional argument is specified, it is used as a prefix 90for the names of the files into which the file is split. 91In this case, each file into which the file is split is named by the 92prefix followed by a lexically ordered suffix in the range of 93.Dq Li aa-zz . 94.Pp 95If the 96.Ar name 97argument is not specified, the file is split into lexically ordered 98files named in the range of 99.Dq Li xaa-zzz . 100.Sh BUGS 101For historical reasons, if you specify 102.Ar name , 103.Nm split 104can only create 676 separate 105files. 106The default naming convention allows 2028 separate files. 107.Pp 108The maximum line length for matching patterns is 65536. 109.Sh SEE ALSO 110.Xr re_format 7 . 111.Sh HISTORY 112A 113.Nm split 114command appeared in 115.At v6 . 116