---
name: "uu-split"
section: "1"
platform: "linux"
package: "uutils-coreutils"
version: "0.12.0-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/uu-split"
---

# uu-split(1)

Create output files containing consecutive or interleaved sections of input

## NAME

split - Create output files containing consecutive or interleaved sections of input

## SYNOPSIS

**split** \[OPTION\]... \[INPUT \[PREFIX\]\]

## DESCRIPTION

Create output files containing consecutive or interleaved sections of input

## OPTIONS

- **-b**, **--bytes** *\<SIZE\>*

  put SIZE bytes per output file

- **-C**, **--line-bytes** *\<SIZE\>*

  put at most SIZE bytes of lines per output file

- **-l**, **--lines** *\<NUMBER\>* \[default: 1000\]

  put NUMBER lines/records per output file

- **-n**, **--number** *\<CHUNKS\>*

  generate CHUNKS output files; see explanation below

- **--additional-suffix** *\<SUFFIX\>* \[default: \]

  additional SUFFIX to append to output file names

- **--filter** *\<COMMAND\>*

  write to shell COMMAND; file name is $FILE (Currently not implemented for Windows)

- **-e**, **--elide-empty-files**

  do not generate empty output files with '-n'

- **-d**

  use numeric suffixes starting at 0, not alphabetic

- **--numeric-suffixes**\[=*\<FROM\>*\]

  same as -d, but allow setting the start value

- **-x**

  use hex suffixes starting at 0, not alphabetic

- **--hex-suffixes**\[=*\<FROM\>*\]

  same as -x, but allow setting the start value

- **-a**, **--suffix-length** *\<N\>*

  generate suffixes of length N (default 2)

- **--verbose**

  print a diagnostic just before each output file is opened

- **-t**, **--separator** *\<SEP\>*

  use SEP instead of newline as the record separator; '\\0' (zero) specifies the NUL character

- **-h**, **--help**

  Print help

- **-V**, **--version**

  Print version

- \[*input*\] \[default: -\]

  - \[*prefix*\] \[default: x\]

  ## EXTRA

Output fixed-size pieces of INPUT to PREFIXaa, PREFIXab, ...; default size is 1000, and default PREFIX is 'x'. With no INPUT, or when INPUT is -, read standard input.

The SIZE argument is an integer and optional unit (example: 10K is 10\*1024). Units are K,M,G,T,P,E,Z,Y,R,Q (powers of 1024) or KB,MB,... (powers of 1000). Binary prefixes can be used, too: KiB=K, MiB=M, and so on.

CHUNKS may be:

  \- N split into N files based on size of input\
   \- K/N output Kth of N to stdout\
   \- l/N split into N files without splitting lines/records\
   \- l/K/N output Kth of N to stdout without splitting lines/records\
   \- r/N like 'l' but use round robin distribution\
   \- r/K/N likewise but only output Kth of N to stdout

## VERSION

v(uutils coreutils) 0.12.0