csplit(1)						      General Commands Manual							 csplit(1)

NAME

       csplit - Splits files by context

SYNOPSIS

       csplit [-f prefix] [-ks] [-nnumber] file | - arg1...argn

       The  csplit  command  reads  the specified file (or standard input) and separates it into segments defined by the specified arguments.  The
       csplit command optionally prints the sizes, in bytes, of each file created.

STANDARDS

       Interfaces documented on this reference page conform to industry standards as follows:

       csplit:	XCU5.0

       Refer to the standards(5) reference page for more information about industry standards and associated tags.

OPTIONS

       Specifies the prefix name (xx by default) for the created file segments.  Leaves previously created file segments intact in the event of an
       error.	By  default, created files are removed if an error occurs.  Uses number decimal digits to form file names for the file pieces. The
       default is 2.  Suppresses the display of file size messages.

OPERANDS

       Specifies the text file to be split.  If you specify - in place of the input file name, csplit reads from standard input.

       The operands arg1...argn can be a combination of the following: Creates a file using the contents of the lines from the current line up to,
       but  not  including,  the line that results from the evaluation of the regular expression with an offset, if included.  The offset argument
       can be any integer (positive or negative) that represents a number of lines.  A plus or minus sign is required.	Has  the  same	effect	as
       /pattern/,  except  that  no  segment file is created.  Moves forward or backward the specified number of lines from the line matched by an
       immediately preceding pattern argument (for example, /Page/-5).	Creates a file containing the segment from the current line up to, but not
       including,  line_number,  which	becomes  the current line.  Repeats the preceding argument the specified number of times.  This number can
       follow any of the pattern or line_number arguments.  If it follows a pattern argument, csplit reuses that pattern the specified	number	of
       times.  If it follows a line_number argument, csplit splits the file from that point every line_number of lines for number times.

DESCRIPTION

       By  default,  csplit  writes the file segments to files named xx00 ...xxn, where n is the number of arguments listed on the command line (n
       may not be greater than 99).  These new files get the following pieces of file: From the start of file up to, but not including,  the  line
       referenced  by  the first argument.  From the line referenced by the first argument up to the line referenced by the second argument.  From
       the line referenced by the last argument to the end of file.

       The csplit command does not alter the original file, unless a generated file overwrites the original file.

       Quote all pattern arguments that contain spaces or other characters special to the shell.  Patterns may not contain embedded newline  char-
       acters.

       [Tru64  UNIX]  See  the	grep(1)  reference  page  for information about creating patterns.  In an expression such as [a-z], the dash means
       "through" according to the current collating sequence.  The collating sequence is determined by the value  of  the  LC_COLLATE  environment
       variable.

       Unless the -s option is specified, csplit writes one line, containing the file size in bytes, for each file created to standard output.

EXIT STATUS

       The following exit values are returned: Successful completion.  An error occurred.

       Unless the -k option is used, any files created before the error was detected will be removed.

EXAMPLES

       To split the text of a book into a separate file for each chapter, enter: csplit book "/^Chapter *[0-9]/" {9}

	      This  creates files named xx00, xx01, xx02,...,xx09, which contain individual chapters of the file book.	Each chapter begins with a
	      line that contains only the word Chapter and the chapter number.	The file xx00 contains the front  matter  that	comes  before  the
	      first  chapter. The {9} after the pattern causes csplit to create up to 9 individual chapters; the remainder are placed in xx10.	To
	      specify the prefix for the created file names, enter: csplit -f chap book "/^Chapter *[0-9]/" {9}

	      This splits book into files named chap00, chap01,...chap9, chap10.

ENVIRONMENT VARIABLES

       The following environment variables affect the execution of csplit: 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 behavior of ranges, equivalence
       classes, and multicharacter collating elements within regular expressions.  Determines the locale for the interpretation  of  sequences	of
       bytes  of text data as characters (for example, single-byte as opposed to multibyte characters in arguments and input files) and the behav-
       ior of character classes within regular expressions.  Determines the locale for the format and contents of diagnostic messages  written	to
       standard error.	Determines the location of message catalogues for the processing of LC_MESSAGES.

SEE ALSO

       Commands:  ed(1), grep(1), sed(1), sh(1b), sh(1p), split(1)

       Files:  regexp(3)

       Standards:  standards(5)

																	 csplit(1)