SPLIT(1) BSD Reference Manual SPLIT(1)
split - split a file into pieces
split [-b byte_count[k|m]] [-l line_count] [-p pattern] [file [name]]
The split utility reads the given file (or standard input if no file is specified) and breaks it up into files of 1000 lines each. The options are as follows: -b Create smaller files byte_count bytes in length. If 'k' is ap- pended to the number, the file is split into byte_count kilobyte pieces. If 'm' is appended to the number, the file is split into byte_count megabyte pieces. -l Create smaller files n lines in length. -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 in the range of "aa-zz". If the name argument is not specified, the file is split into lexically ordered files named in the range of "xaa-zzz".
A split command appeared in Version 3 AT&T UNIX.
For historical reasons, if you specify name, split can only create 676 separate files. The default naming convention allows 2028 separate files. The maximum line length for matching patterns is 65536. MirOS BSD #10-current April 16, 1994 1
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