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csplit(context split)

csplit(context split)
功能说明:分割文件。
语  法:csplit [-kqsz][-b<输出格式>][-f<输出字首字符串>][-n<输出文件名位数>][--help][--version][文件][范本样式...]
补充说明:将文件依照指定的范本样式予以切割后,分别保存成名称为xx00,xx01,xx02...的文件。若给予的文件名称为"-",则csplit指令会从标准输入设备读取数据。
参  数:
  -b<输出格式>或--suffix-format=<输出格式>   预设的输出格式其文件名称为xx00,xx01...等,您可以通过改变<输出格式>来改变输出的文件名。
  -f<输出字首字符串>或--prefix=<输出字首字符串>   预设的输出字首字符串其文件名为xx00,xx01...等,如果你指定输出字首字符串为"hello",则输出的文件名称会变成hello00,hello01...等。
  -k或--keep-files   保留文件,就算发生错误或中断执行,也不能删除已经输出保存的文件。
  -n<输出文件名位数>或--digits=<输出文件名位数>   预设的输出文件名位数其文件名称为xx00,xx01...等,如果你指定输出文件名位数为"3",则输出的文件名称会变成xx000,xx001...等。
  -q或-s或--quiet或--silent   不显示指令执行过程。
  -z或--elide-empty-files   删除长度为0 Byte文件。
  --help   在线帮助。
  --version   显示版本信息。

csplit

csplit [options] file arguments

Separate file into context-based sections and place sections in files named xx00 through xxn (n < 100), breaking file at each pattern specified in arguments. See also split.

Options

-

Read from standard input.

-b suffix, --suffix-format=suffix

Append suffix to output filename. This option causes -n to be ignored. suffix must specify how to convert the binary integer to readable form by including one of the following: %d, %i, %u, %o, %x, or %X. The value of suffix determines the format for numbers as follows:

%d

Signed decimal.

%i

Same as %d.

%u

Unsigned decimal.

%o

Octal.

%x

Hexadecimal.

%X

Same as %x.

-f prefix, --prefix=prefix

Name new files prefix00 through prefixn (default is xx00 through xxn).

-k, --keep-files

Keep newly created files even when an error occurs (which would normally remove these files). This is useful when you need to specify an arbitrarily large repeat argument, {n}, and you don't want an out-of-range error to cause removal of the new files.

-n num, --digits=num

Use output filenames with numbers num digits long. The default is 2.

-s, -q, --silent, --quiet

Suppress all character counts.

-z, --elide-empty-files

Do not create empty output files. However, number as if those files had been created.

Arguments

Any one or a combination of the following expressions may be specified as arguments. Arguments containing blanks or other special characters should be surrounded by single quotes.

/expr/[offset]

Create file from the current line up to the line containing the regular expression expr. offset should be of the form +n or -n, where n is the number of lines below or above expr.

%expr%[offset]

Same as /expr/, except no file is created for lines previous to line containing expr.

num

Create file from current line up to (but not including) line number num. When followed by a repeat count (number inside { }), put the next num lines of input into another output file.

{n}

Repeat argument n times. May follow any of the preceding arguments. Files will split at instances of expr or in blocks of num lines. If * is given instead of n, repeat argument until input is exhausted.

Examples

Create up to 20 chapter files from the file novel:

csplit -k -f chap. novel '/CHAPTER/' '{20}'

Create up to 100 address files (xx00 through xx99), each four lines long, from a database named address_list:

csplit -k address_list 4 {99}