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Man Pages


Manual Reference Pages  -  SPLIT (1)

NAME

split - split a file into pieces

CONTENTS

Synopsis
Description
Environment
Exit Status
See Also
Standards
History
Bugs

SYNOPSIS

split -d [-l line_count] [-a suffix_length] [file [prefix]] split -d -b byte_count [
.Sm off K | k | M | m | G | g
.Sm on ] [-a suffix_length] [file [prefix]] split -d -n chunk_count [-a suffix_length] [file [prefix]] split -d -p pattern [-a suffix_length] [file [prefix]]

DESCRIPTION

The split utility reads the given file and breaks it up into files of 1000 lines each (if no options are specified), leaving the file unchanged. If file is a single dash ('') or absent, split reads from the standard input.

The options are as follows:
-a suffix_length
  Use suffix_length letters to form the suffix of the file name.
-b byte_count[
 
.Sm off K | k | M | m | G | g
.Sm on ] Create split files byte_count bytes in length. If k or K is appended to the number, the file is split into byte_count kilobyte pieces. If m or M is appended to the number, the file is split into byte_count megabyte pieces. If g or G is appended to the number, the file is split into byte_count gigabyte pieces.
-d Use a numeric suffix instead of a alphabetic suffix.
-l line_count
  Create split files line_count lines in length.
-n chunk_count
  Split file into chunk_count smaller files.
-p pattern
  The file is split whenever an input line matches 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 -b and -l options.

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 suffix_length characters in the range "a - z". If -a is not specified, two letters are used as the suffix.

If the prefix argument is not specified, the file is split into lexically ordered files named with the prefix "x" and with suffixes as above.

ENVIRONMENT

The LANG, LC_ALL, LC_CTYPE and LC_COLLATE environment variables affect the execution of split as described in environ(7).

EXIT STATUS


.Ex -std

SEE ALSO

csplit(1), re_format(7)

STANDARDS

The split utility conforms to -p1003.1-2001.

HISTORY

A split command appeared in AT&T v3 .

BUGS

The maximum line length for matching patterns is 65536.
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