split - Splits a file into pieces
split [-l line_count] [-a suffix_length] [file | -] [prefix]
split -b n [k|m] [-a suffix_length] [file | -] [prefix]
split [-number] [-a suffix_length] [file | -] [prefix]
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Uses suffix_length letters to form the suffix portion of the file names
of the split file. If -a is not specified, the default suffix length
is two letters. If the sum of the prefix and the suffix arguments
would create a file name exceeding NAME_MAX bytes, an error occurs. In
this case, split exits with a diagnostic message and no files are
Split a file into pieces n bytes in size.
Split a file into pieces n kilobytes (1024 bytes) in size.
Split a file into pieces n megabytes (1048576 bytes) in size.
Specifies the number of lines in each output file. The line_count
argument is an unsigned decimal integer. The default value is 1000.
If the input does not end with a newline character, the partial line is
included in the last output file.
Specifies the number of lines in each output file. The default is 1000
lines per output file. If the input does not end with a newline char-
acter, the partial line is included in the last output file. (Obsoles-
The pathname of the file to be split.
If you do not specify an input file, or if you specify -, the standard
input is used.
The split command reads file and writes it in number-line pieces (default
1000 lines) to a set of output files.
The size of the output files can be modified by using the -b or -l options.
Each output file is created with a unique suffix consisting of exactly suf-
fix lowercase letters from the POSIX locale. The letters of the suffix are
used as if they were a base-26 digit system, with the first suffix to be
created consisting of all a characters, the second with b replacing the
last a etc., until a name of all zs is created. By default, the names of
the output files are x, followed by a two-character suffix from the charac-
ter set as described above, starting with aa, ab, ac, etc., and continuing
until the suffix zz, for a maximum of 676 files.
The value of prefix cannot be longer than the value of NAME_MAX from
<<limits.h>> minus two.
If the number of files required is greater than the maximum allowed by the
effective suffix length (such that the last allowable file would be larger
than the requested size), split fails after creating the last possible file
with a valid suffix. The split command will not delete the files it
created with valid suffixes. If the file limit is not exceeded, the last
file created contains the remainder of the input file and thus might be
smaller than the requested size.
The following exit values are returned:
0 Successful completion.
>>0 An error occurred.
1. To split a file into 1000-line segments, enter:
This splits book into 1000-line segments named xaa, xab, xac, and so
2. To split a file into 50-line segments and specify the file name pre-
split -l50 book sect
This splits book into 50-line segments named sectaa, sectab, sectac,
and so forth.
The following environment variables affect the execution of split:
Provides a default value for the internationalization variables that
are unset or null. If LANG is unset or null, the corresponding value
from the default locale is used. If any of the internationalization
variables contain an invalid setting, the utility behaves as if none of
the variables had been defined.
If set to a non-empty string value, overrides the values of all the
other internationalization variables.
Determines the locale for the interpretation of sequences of bytes of
text data as characters (for example, single-byte as opposed to multi-
byte characters in arguments and input files).
Determines the locale for the format and contents of diagnostic mes-
sages written to standard error.
Determines the location of message catalogues for the processing of
Commands: bfs(1), csplit(1)