Csplit
Encyclopedia
The csplit command in Unix
is a utility that is used to split a file
into two or more smaller files determined by context lines.
is:
csplit (optional parameters) (input filename) (patterns)
The patterns may be line number
s or regular expression
s. The program outputs pieces of the file separated by the patterns into files xx00, xx01, etc., and outputs the size of each piece, in byte
s, to standard output.
The optional parameters modify the behaviour of the program in various ways. For example, the default prefix string (xx) and number of digits (2) in the output filenames can be changed.
As with most Unix utilities, a return code of 0 indicates success, while nonzero values indicate failure.
command also splits a file into pieces, except that all the pieces are of a fixed size (measured in lines or bytes).
Unix
Unix is a multitasking, multi-user computer operating system originally developed in 1969 by a group of AT&T employees at Bell Labs, including Ken Thompson, Dennis Ritchie, Brian Kernighan, Douglas McIlroy, and Joe Ossanna...
is a utility that is used to split a file
Computer file
A computer file is a block of arbitrary information, or resource for storing information, which is available to a computer program and is usually based on some kind of durable storage. A file is durable in the sense that it remains available for programs to use after the current program has finished...
into two or more smaller files determined by context lines.
Usage
The command-syntaxSyntax
In linguistics, syntax is the study of the principles and rules for constructing phrases and sentences in natural languages....
is:
csplit (optional parameters) (input filename) (patterns)
The patterns may be line number
Line number
In computing, a line number is a method used to specify a particular sequence of characters in a text file. The most common method of assigning numbers to lines is to assign every line a unique number, starting at 1 for the first line, and incrementing by 1 for each successive line.In the C...
s or regular expression
Regular expression
In computing, a regular expression provides a concise and flexible means for "matching" strings of text, such as particular characters, words, or patterns of characters. Abbreviations for "regular expression" include "regex" and "regexp"...
s. The program outputs pieces of the file separated by the patterns into files xx00, xx01, etc., and outputs the size of each piece, in byte
Byte
The byte is a unit of digital information in computing and telecommunications that most commonly consists of eight bits. Historically, a byte was the number of bits used to encode a single character of text in a computer and for this reason it is the basic addressable element in many computer...
s, to standard output.
The optional parameters modify the behaviour of the program in various ways. For example, the default prefix string (xx) and number of digits (2) in the output filenames can be changed.
As with most Unix utilities, a return code of 0 indicates success, while nonzero values indicate failure.
Comparison to split
The splitSplit (Unix)
split is a Unix utility most commonly used to split a file into two or more smaller files.-Usage:The command-syntax is: split [OPTION] [INPUT [PREFIX]]...
command also splits a file into pieces, except that all the pieces are of a fixed size (measured in lines or bytes).