[Comprehensive explanation of Linux commands] 038. File splitting tool split and zip compressed package cutting tool zipsplit

split

Split files of any size

Additional information

The split command can split a large file into many small files. Sometimes it is necessary to split the file into smaller fragments, such as to improve readability, generate logs, etc.

Options

-b: The value is the size of each output file, in bytes.

-C: The maximum number of bytes in a single line in each output file.

-d: Use numbers as suffix.

-l: The value is the number of lines in each output file.

-a: Specify the suffix length (default is 2).

Example

Generate a test file of size 100KB:

[root@localhost split]# dd if=/dev/zero bs=100k count=1 of=date.file
1+0 records in
1+0 records out
102400 bytes (102 kB) copied, 0.00043 seconds, 238 MB/s

Use the split command to split the date.file created above into small files of 10KB size:

[root@localhost split]# split -b 10k date.file 
[root@localhost split]# ls
date.file  xaa  xab  xac  xad  xae  xaf  xag  xah  xai  xaj

The file is split into multiple suffix files with letters. If you want to use a numeric suffix, you can use the -d parameter, and you can use -a length to specify the length of the suffix:

[root@localhost split]# split -b 10k date.file -d -a 3
[root@localhost split]# ls
date.file  x000  x001  x002  x003  x004  x005  x006  x007  x008  x009

Specify the filename prefix for the split files:

[root@localhost split]# split -b 10k date.file -d -a 3 split_file
[root@localhost split]# ls
date.file  split_file000  split_file001  split_file002  split_file003  split_file004  split_file005  split_file006  split_file007  split_file008  split_file009

Use the -l option to split the file based on the number of lines in the file, for example, split the file into small files containing 10 lines each:

split -l 10 date.file 

zipsplit

Split a larger zip archive into smaller archives

Additional information

The zipsplit command is used to split a larger "zip" compressed package into smaller "zip" compressed packages.

grammar

zipsplit(options)(parameters)

Options

-n: Specify the size of each zip file after splitting;

-t: Report the size of the smaller zip file that will be generated;

-b: Specify the storage location of the split zip file.

parameter

File: Specify the zip archive to be split.

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