Linux Common Commands--split

1. Function: Split large files into multiple small files

2. Usage: Split [parameter] file [name]

3. Parameters:

-B: Divide the document by byte size;

-D: Use a number as a suffix.

-L: The value is the size of the number of columns per output file.

4. Example

[Email protected] ~]$ Head-10/etc/passwd>/home/mysql/passwd.txt

Example 1: Dividing the/home/mysql/passwd.txt by 4 rows per file

[Email protected] ~]$ split-4 passwd.txt

[[email protected] ~]$ for file in ' ls|grep-v "Passwd.txt" ';d o echo ' wc-l $file ';

4 XAA

4 Xab

2 Xac

These three are automatically named files, and the source files are still present after the file is split. The source files are 10 lines in total, divided by 4 rows per file, and the number of rows for three files is 4,4,2.

Example 2: Splitting a file by byte

[Email protected] ~]$ Split-b passwd.txt

[Email protected] ~]$ more XAA

Root:x:0:0:root:/root:/bin/bash

Bin:x:1:1:bin:/bin:/sbin/nologin

Daemon:x:2:2:daemon:/sbin:/sbin/nologin

Adm:x:3:4:adm:/var/adm:/sbin/nologin

Lp:x:4:7:lp:/var/spool/lpd:/sbin/nologin

sync:x:5:0:sync:/

[Email protected] ~]$ more Xab

Sbin:/bin/sync

Shutdown:x:6:0:shutdown:/sbin:/sbin/shutdown

Halt:x:7:0:halt:/sbin:/sbin/halt

Mail:x:8:12:mail:/var/spool/mail:/sbin/nologin

Uucp:x:10:14:uucp:/var/spool/uucp:/sbin/nologin

File discontinuity occurs by byte splitting

Example 3: Specifying the file name and starting number

[Email protected] ~]$ split-l 4 passwd.txt "passwd"-D

[[email protected] ~]$ ls |grep-v "Passwd.txt"

Passwd00

Passwd01

Passwd02

The file name is changed to a format that begins with passwd and ends with a number.

Linux Common Commands--split