Introduction to the use of split Command in Linux system

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Location: / usr/bin/split

Permissions: all users

Function:

Usage: split [OPTION]. [INPUT [PREFIX]]

Options:

-b can be followed by the size of the file that can be cut, and units can be added, for example: bMagol k, m

-l split by the number of rows

PREFIX: leader, which can be used as the leading text of a cut file

Here col1 is the leader, generating three files col1aa, col1ab, and col1ac

The code is as follows:

$split-b 1k col col1

$ls-hl

Total dosage 80K

-rw-rw-r-- 1 cwjy1202 cwjy1202 54 January 8 00:11 a

-rw-rw-r-- 1 cwjy1202 cwjy1202 39 January 11 12:58 b

-rw-rw-r-- 1 cwjy1202 cwjy1202 54 January 8 22:09 c

-rw-rw-r-- 1 cwjy1202 cwjy1202 3.0K January 11 18:50 col

-rw-rw-r-- 1 cwjy1202 cwjy1202 1.0K January 12 00:09 col1aa

-rw-rw-r-- 1 cwjy1202 cwjy1202 1.0K January 12 00:09 col1ab

-rw-rw-r-- 1 cwjy1202 cwjy1202 1006 January 12 00:09 col1ac

-rw-rw-r-- 1 cwjy1202 cwjy1202 3.0K January 11 18:45 col.list

-rw-rw-r-- 1 cwjy1202 cwjy1202 75 12 27 22:09 mudi

Drwxr-xr-x 2 cwjy1202 cwjy1202 4.0K 12 29 23:47 myDir

-rwxr-xr-x 1 cwjy1202 cwjy1202 15K 12 28 23:20 nginx

-rw-rw-r-- 1 cwjy1202 cwjy1202 16K 12 27 20:16 nginxlog

-rw- 1 cwjy1202 cwjy1202 1004 August 29 17:24 R language flow chart. R

-rw-rw-r-- 1 cwjy1202 cwjy1202 33 January 3 16:13 test.bc

The file col is separated by the number of lines, and the leading character of the generated file is col, which is divided into three files: colaa, colab, colac and colad.

The code is as follows:

$split-l 20 col col

$ls-hl

Total dosage 84K

-rw-rw-r-- 1 cwjy1202 cwjy1202 54 January 8 00:11 a

-rw-rw-r-- 1 cwjy1202 cwjy1202 39 January 11 12:58 b

-rw-rw-r-- 1 cwjy1202 cwjy1202 54 January 8 22:09 c

-rw-rw-r-- 1 cwjy1202 cwjy1202 3.0K January 11 18:50 col

-rw-rw-r-- 1 cwjy1202 cwjy1202 921 January 12 00:13 colaa

-rw-rw-r-- 1 cwjy1202 cwjy1202 1021 January 12 00:13 colab

-rw-rw-r-- 1 cwjy1202 cwjy1202 807 January 12 00:13 colac

-rw-rw-r-- 1 cwjy1202 cwjy1202 305 January 12 00:13 colad

-rw-rw-r-- 1 cwjy1202 cwjy1202 3.0K January 11 18:45 col.list

-rw-rw-r-- 1 cwjy1202 cwjy1202 75 12 27 22:09 mudi

Drwxr-xr-x 2 cwjy1202 cwjy1202 4.0K 12 29 23:47 myDir

-rwxr-xr-x 1 cwjy1202 cwjy1202 15K 12 28 23:20 nginx

-rw-rw-r-- 1 cwjy1202 cwjy1202 16K 12 27 20:16 nginxlog

-rw- 1 cwjy1202 cwjy1202 1004 August 29 17:24 R language flow chart. R

-rw-rw-r-- 1 cwjy1202 cwjy1202 33 January 3 16:13 test.bc

Special example: how to separate the following information into multiple files with 5 lines

The code is as follows:

$ls-al

Total dosage 92

Drwxrwxr-x 3 cwjy1202 cwjy1202 4096 January 12 00:19.

Drwxrwxr-x 21 cwjy1202 cwjy1202 4096 12 27 21:23..

-rw-rw-r-- 1 cwjy1202 cwjy1202 54 January 8 00:11 a

-rw-rw-r-- 1 cwjy1202 cwjy1202 39 January 11 12:58 b

-rw-rw-r-- 1 cwjy1202 cwjy1202 54 January 8 22:09 c

-rw-rw-r-- 1 cwjy1202 cwjy1202 3054 January 11 18:50 col

-rw-rw-r-- 1 cwjy1202 cwjy1202 921 January 12 00:13 colaa

-rw-rw-r-- 1 cwjy1202 cwjy1202 1021 January 12 00:13 colab

-rw-rw-r-- 1 cwjy1202 cwjy1202 807 January 12 00:13 colac

-rw-rw-r-- 1 cwjy1202 cwjy1202 305 January 12 00:13 colad

-rw-rw-r-- 1 cwjy1202 cwjy1202 3054 January 11 18:45 col.list

-rw-rw-r-- 1 cwjy1202 cwjy1202 75 12 27 22:09 mudi

Drwxr-xr-x 2 cwjy1202 cwjy1202 4096 12 29 23:47 myDir

-rwxr-xr-x 1 cwjy1202 cwjy1202 14698 12 28 23:20 nginx

-rw-rw-r-- 1 cwjy1202 cwjy1202 16298 12 27 20:16 nginxlog

-rw- 1 cwjy1202 cwjy1202 1004 August 29 17:24 R language flow chart. R

-rw-rw-r-- 1 cwjy1202 cwjy1202 33 January 3 16:13 test.bc

As follows: the-after split-l 5, that-indicates the need for stdout or stdin

In addition, lsal represents the name leader of the generated file, and the generated name is: lsalaa, lsalab, lsalac, lsalad

The code is as follows:

$ls-la | split-l 5-lsal

$ls-al

Total dosage 108

Drwxrwxr-x 3 cwjy1202 cwjy1202 4096 January 12 00:21.

Drwxrwxr-x 21 cwjy1202 cwjy1202 4096 12 27 21:23..

-rw-rw-r-- 1 cwjy1202 cwjy1202 54 January 8 00:11 a

-rw-rw-r-- 1 cwjy1202 cwjy1202 39 January 11 12:58 b

-rw-rw-r-- 1 cwjy1202 cwjy1202 54 January 8 22:09 c

-rw-rw-r-- 1 cwjy1202 cwjy1202 3054 January 11 18:50 col

-rw-rw-r-- 1 cwjy1202 cwjy1202 921 January 12 00:13 colaa

-rw-rw-r-- 1 cwjy1202 cwjy1202 1021 January 12 00:13 colab

-rw-rw-r-- 1 cwjy1202 cwjy1202 807 January 12 00:13 colac

-rw-rw-r-- 1 cwjy1202 cwjy1202 305 January 12 00:13 colad

-rw-rw-r-- 1 cwjy1202 cwjy1202 3054 January 11 18:45 col.list

-rw-rw-r-- 1 cwjy1202 cwjy1202 238 January 12 00:21 lsalaa

-rw-rw-r-- 1 cwjy1202 cwjy1202 294 January 12 00:21 lsalab

-rw-rw-r-- 1 cwjy1202 cwjy1202 302 January 12 00:21 lsalac

-rw-rw-r-- 1 cwjy1202 cwjy1202 201 January 12 00:21 lsalad

-rw-rw-r-- 1 cwjy1202 cwjy1202 75 12 27 22:09 mudi

Drwxr-xr-x 2 cwjy1202 cwjy1202 4096 12 29 23:47 myDir

-rwxr-xr-x 1 cwjy1202 cwjy1202 14698 12 28 23:20 nginx

-rw-rw-r-- 1 cwjy1202 cwjy1202 16298 12 27 20:16 nginxlog

-rw- 1 cwjy1202 cwjy1202 1004 August 29 17:24 R language flow chart. R

-rw-rw-r-- 1 cwjy1202 cwjy1202 33 January 3 16:13 test.bc

The code is as follows:

$wc-l lsal*

5 lsalaa

5 lsalab

5 lsalac

3 lsalad

18 Total dosage

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