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csplit(1)

csplit(1)                        User Commands                       csplit(1)



NAME
       csplit - split  files based on context

SYNOPSIS
       csplit [-ks] [-f prefix] [-n number] file arg1... argn

DESCRIPTION
       The csplit utility reads the file named by the file operand, writes all
       or part of that file into other files as directed by the arg  operands,
       and writes the sizes of the files.

OPTIONS
       The following options are supported:

       -f prefix    Names  the created files prefix00, prefix01, ..., prefixn.
                    The default is xx00 ... xxn. If the prefix argument  would
                    create  a  file name exceeding 14 bytes, an error results.
                    In that case, csplit exits with a diagnostic  message  and
                    no files are created.


       -k           Leaves previously created files intact. By default, csplit
                    removes created files if an error occurs.


       -n number    Uses number decimal digits to form filenames for the  file
                    pieces. The default is 2.


       -s           Suppresses the output of file size messages.


OPERANDS
       The following operands are supported:

       file    The  path  name  of  a text file to be split. If file is -, the
               standard input will be used.



       The operands arg1 ... argn can be a combination of the following:

       /rexp/[offset]    Create a file using the content of the lines from the
                         current  line up to, but not including, the line that
                         results from the evaluation of the regular expression
                         with  offset, if any, applied. The regular expression
                         rexp must follow the rules for basic regular  expres‐
                         sions.  Regular  expressions  can  include the use of
                         '\/' and '\%'. These forms must  be  properly  quoted
                         with  single  quotes,  since  "\"  is  special to the
                         shell. The optional offset must be a positive or neg‐
                         ative  integer  value representing a number of lines.
                         The integer value must be preceded by + or −. If  the
                         selection  of lines from an offset expression of this
                         type would create a file with zero lines, or one with
                         greater  than  the  number of lines left in the input
                         file, the results are unspecified. After the  section
                         is  created, the current line will be set to the line
                         that results  from  the  evaluation  of  the  regular
                         expression with any offset applied. The pattern match
                         of rexp always is applied from the  current  line  to
                         the end of the file.


       %rexp%[offset]    This  operand  is  the same as /rexp/[offset], except
                         that no file will be created for the selected section
                         of the input file.


       line_no           Create  a  file  from the current line up to (but not
                         including) the line number line_no. Lines in the file
                         will  be  numbered  starting at one. The current line
                         becomes line_no.


       {num}             Repeat operand. This operand can follow  any  of  the
                         operands  described  previously. If it follows a rexp
                         type operand, that operand will be applied  num  more
                         times. If it follows a line_no operand, the file will
                         be split every line_no lines, num  times,  from  that
                         point.



       An  error  will  be  reported  if  an operand does not reference a line
       between the current position and the end of the file.

EXAMPLES
       Example 1 Splitting and combining files



       This example creates four files, cobol00...cobol03.




         example% csplit -f cobol filename \
            '/procedure division/' /par5./ /par16./




       After editing the split files, they can be recombined as follows:


         example% cat cobol0[0−3] > filename




       This example overwrites the original file.

       Example 2 Splitting a file into equal parts



       This example splits the file at every 100 lines, up  to  10,000  lines.
       The -k option causes the created files to be retained if there are less
       than 10,000 lines; however, an error message would still be printed.


         example% csplit -k filename 100 {99}


       Example 3 Creating a file for separate C routines



       If prog.c follows the normal C coding convention (the last  line  of  a
       routine  consists  only  of  a } in the first character position), this
       example creates a file for each  separate  C  routine  (up  to  21)  in
       prog.c.


         example% csplit -k prog.c '%main(%' '/^}/+1' {20}


ENVIRONMENT VARIABLES
       See  environ(7) for descriptions of the following environment variables
       that  affect  the  execution  of  csplit:  LANG,  LC_ALL,   LC_COLLATE,
       LC_CTYPE, LC_MESSAGES, and NLSPATH.

EXIT STATUS
       The following exit values are returned:

       0     Successful completion.


       >0    An error occurred.


ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:


       tab()  box; cw(2.75i) |cw(2.75i) lw(2.75i) |lw(2.75i) ATTRIBUTE TYPEAT‐
       TRIBUTE VALUE _ Availabilitysystem/core-os  _  CSIEnabled  _  Interface
       StabilityCommitted _ StandardSee standards(7).


SEE ALSO
       sed(1), split(1), attributes(7), environ(7), standards(7)

DIAGNOSTICS
       The diagnostic messages are self-explanatory, except for the following:

       arg − out of range       The  given  argument  did not reference a line
                                between the current position and  the  end  of
                                the file.




Oracle Solaris 11.4               4 Feb 2015                         csplit(1)
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