Linux Common Commands--paste

1. Functions: Merging the columns of a file

2. Usage: Paste [parameters] File

3. Parameters:

-D,--delimiters Specifies the spacer,

- s,--serial combine multiple rows of data into multiple columns

4. Example

Select the first and last columns of the/etc/passwd file as raw data, test with the Paste command, and first extract the first column and the last column from the/etc/passwd file:

[[email protected] ~]$ cat/etc/passwd |awk-f ":" ' {print $} ' >user_name.txt

[[email protected] ~]$ cat/etc/passwd |awk-f ":" ' {print $NF} ' >user_login.txt

[email protected] ~]$ head user_* #查看文件内容

Example 1: Merging user_name,user_login two columns

[email protected] ~]$ paste User_name.txt user_login.txt|head-5

Root/bin/bash

Bin/sbin/nologin

Daemon/sbin/nologin

Adm/sbin/nologin

Lp/sbin/nologin

Specify the delimiter as ","

[email protected] ~]$ paste-d "," User_name.txt user_login.txt|head-5

Root,/bin/bash

Bin,/sbin/nologin

Daemon,/sbin/nologin

Adm,/sbin/nologin

Lp,/sbin/nologin

Example 2: Row to Column

The file's row to column, one file is 1 lines.

A file row to column:

[email protected] ~]$ paste-s user_name.txt

Root bin Daemon adm LP sync shutdown halt mail UUCP operator Games Gopher FTP No Body Dbus oprofile vcsa hsqldb saslauth postfix sshd MySQL NTP

[email protected] ~]$ paste-s user_name.txt |wc-l

1

Two files are followed by row-to-column and are:

[email protected] ~]$ paste-s user_name.txt user_name.txt

Root bin Daemon adm LP sync shutdown halt mail UUCP operator Games Gopher FTP No Body Dbus oprofile vcsa hsqldb saslauth postfix sshd MySQL NTP

Root bin Daemon adm LP sync shutdown halt mail UUCP operator Games Gopher FTP No Body Dbus oprofile vcsa hsqldb saslauth postfix sshd MySQL NTP

[email protected] ~]$ paste-s user_name.txt user_name.txt |wc-l

2

After the file is merged, the row goes to the column:

[email protected] ~]$ paste-d user_name.txt user_name.txt|paste-s |wc-l

1

Linux Common Commands--paste