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\"      @(#)split.1     8.3 (Berkeley) 4/16/94
\"
Dd February 14, 2023
Dt SPLIT 1
Os
Sh NAME
Nm split
Nd split a file into pieces
Sh SYNOPSIS
Nm
Op Fl a Ar suffix_length
Oo
Fl b Ar byte_count Ns Oo Li k|m Oc |
Fl l Ar line_count |
Fl n Ar chunk_count
Oc
Op Ar file Op Ar name
Sh DESCRIPTION
The
Nm
utility reads the given
Ar file
and breaks it up into files of 1000 lines each.
If
Ar file
is a single dash or absent,
Nm
reads from the standard input.
Ar file
itself is not altered.
Pp
The options are as follows:
Bl -tag -width Ds
It Fl a
Use
Ar suffix_length
letters to form the suffix of the file name.
It Fl b
Create smaller files
Ar byte_count
bytes in length.
If
Ql k
is appended to the number, the file is split into
Ar byte_count
kilobyte pieces.
If
Ql m
is appended to the number, the file is split into
Ar byte_count
megabyte pieces.
It Fl l
Create smaller files
Ar line_count
lines in length.
It Fl n
Split file into
Ar chunk_count
smaller files.
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-z .
If
Fl a
is not specified, two letters are used as the initial
suffix.
If the output does not fit into the resulting number
of files, then the suffix length is automatically
extended as needed such that all output files continue
to sort in lexical order.
Pp
If the
Ar name
argument is not specified,
Ql x
is used.
Sh STANDARDS
The
Nm
utility conforms to
St -p1003.1-2001 .
Sh HISTORY
A
Nm
command appeared in
At v6 .
Pp
The
Fl a
option was introduced in
Nx 2.0 .
Before that, if
Ar name
was not specified,
Nm
would vary the first letter of the filename
to increase the number of possible output files.
The
Fl a
option makes this unnecessary.

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