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SPLIT(1) User Commands SPLIT(1) NAME split - split a file into pieces SYNOPSIS split [OPTION]... [FILE [PREFIX]] DESCRIPTION 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) --additional-suffix=SUFFIX 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 -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 -e, --elide-empty-files do not generate empty output files with '-n' --filter=COMMAND 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/...' --verbose print a diagnostic just before each output file is opened --help display this help and exit --version 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,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 standard output l/N split into N files without splitting lines/records l/K/N output Kth of N to standard output without splitting lines/records r/N like 'l' but use round robin distribution r/K/N likewise but only output Kth of N to standard output AUTHOR Written by TorbjA<paragraph>rn Granlund and Richard M. Stallman. REPORTING BUGS Report bugs to: bug-coreutils@gnu.org GNU coreutils home page: <https://www.gnu.org/software/coreutils/> General help using GNU software: <https://www.gnu.org/gethelp/> Report any translation bugs to <https://translationproject.org/team/> COPYRIGHT Copyright (C) 2025 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. SEE ALSO Full documentation <https://www.gnu.org/software/coreutils/split> or available locally via: info '(coreutils) split invocation' GNU coreutils 9.9 November 2025 SPLIT(1)
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