Linux split large file instances

The split function is used to split files in linux. Its main function is to split large folders. Next I will introduce some examples of splitting large files.

Linux split command

Function Description: cut a file.

Syntax: split [-- help] [-- version] [-<number of rows>] [-B <byte>] [-C <byte>] [-l <number of rows>] [To cut file] [output file name]

Note: split can cut the file into smaller files. By default, each 1000 lines can be cut into a smaller file.

Parameters:

-<Number of rows> or-l <number of rows> specifies the number of rows to be split into a small file.

-B <byte> specifies the number of characters to be split into a small file. Supported units: m, k

-C <byte> is similar to the-B parameter, but the integrity of each line should be maintained whenever possible during cutting.

-- Help: displays help.

-- Version: displays the version information.

[Output file name] sets the prefix file name of the cut file. split will automatically add a number after the prefix file name.

Use split in Linux to split files:

Mode 1: specify the number of lines of files after segmentation

For text files, you can specify the number of lines of the split files to split the files.

Command: split-l 300 large_file.log new_file_prefix

Mode 2: Specify the split File Size

The Code is as follows:	Copy code
Split-B 10 m server. log server_prefix

We can also separate binary files by file size.

Split file.tar.gz into a file with the "file _" prefix and 10 MB in size.

The Code is as follows:	Copy code
$ Split-B 10 m file.tar.gz file _

Merge files with cat in Linux:

Command: cat small_files *> large_file

Merge and split files

The Code is as follows:	Copy code
$ Cat file _ *> file.tar.gz