Man1 - split.1

Table of Contents


split - split a file into pieces


split [/OPTION/]… [/FILE /[/PREFIX/]]


Output pieces of FILE to PREFIXaa, PREFIXab, …; default size is 1000 lines, and default PREFIX is ’x’.

With no FILE, or when FILE is -, read standard input.

Mandatory arguments to long options are mandatory for short options too.

-a, *–suffix-length*=/N/
generate suffixes of length N (default 2)
append an additional SUFFIX to file names
-b, *–bytes*=/SIZE/
put SIZE bytes per output file
-C, *–line-bytes*=/SIZE/
put at most SIZE bytes of records per output file
use numeric suffixes starting at 0, not alphabetic
same as -d, but allow setting the start value
use hex suffixes starting at 0, not alphabetic
same as -x, but allow setting the start value
-e, –elide-empty-files
do not generate empty output files with ’-n’
write to shell COMMAND; file name is $FILE
-l, *–lines*=/NUMBER/
put NUMBER lines/records per output file
-n, *–number*=/CHUNKS/
generate CHUNKS output files; see explanation below
-t, *–separator*=/SEP/
use SEP instead of newline as the record separator; ’\0’ (zero) specifies the NUL character
-u, –unbuffered
immediately copy input to output with ’-n r/…’
print a diagnostic just before each output file is opened
display this help and exit
output version information and exit

The SIZE argument is an integer and optional unit (example: 10K is 10*1024). Units are K,M,G,T,P,E,Z,Y (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:

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


Written by Torbjorn Granlund and Richard M. Stallman.


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Copyright © 2021 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.


Full documentation
or available locally via: info ’(coreutils) split invocation’

Author: dt

Created: 2022-02-22 Tue 16:46