How to use scp command in linux? (Detailed explanation of usage)

In Linux, the scp command is used to copy files and directories between Linux, that is, upload local files to a remote server in a Linux server, or download files from a remote server to local. scp is a secure remote file copy command based on ssh login under Linux system.

What is the scp command? What is the use?

scp is the abbreviation of secure copy. scp is a secure remote file copy command based on ssh login under Linux system.

Linux scp command is used to copy files and directories between Linux.

Note: scp is encrypted, rcp is not encrypted, scp is an enhanced version of rcp.

Syntax

scp [-1246BCpqrv] [-c cipher] [-F ssh_config] [-i identity_file] [-l limit] [-o ssh_option] [-P port] [-S program] [[user@]host1:]file1 [...] [[user@]host2:]file2

Simple writing:

scp [可选参数] file_source file_target

Parameter description:

• -1: Force scp The command uses protocol ssh1

• -2: Forces the scp command to use protocol ssh2

• -4: Forces the scp command to use only IPv4 addressing

• -6: Force the scp command to use only IPv6 addressing

• -B: Use batch mode (do not ask for transfer password or phrase during transfer) )

• -C: Enable compression. (Pass the -C flag to ssh to turn on compression)

• -p: Preserve the modification time, access time and access permissions of the original file.

• -q: Do not display the transfer progress bar.

• -r: Recursively copy the entire directory.

• -v: Display output in verbose mode. scp and ssh(1) will display debugging information for the entire process. This information is used to debug connection, authentication, and configuration issues.

• -c cipher: Use cipher to encrypt data transmission. This option will be passed directly to ssh.

• -F ssh_config: Specifies an alternative ssh configuration file, this parameter is passed directly to ssh.

• -i identity_file: Read the key file used for transmission from the specified file. This parameter is passed directly to ssh.

• -l limit: Limit the bandwidth that users can use, in Kbit/s.

• -o ssh_option: If you are used to using the parameter passing method in ssh_config(5),

• -P port: Note that it is capitalized P, port is the port number used to specify the data transmission

• -S program: Specifies the program used for encrypted transmission. This program must be able to understand the options of ssh(1).

Using the scp command in Linux

Copy local files to the remote host

user@xxx:file Separate files with colons

$ scp localFile user@xxx.xxx.xx:/ //拷贝本地文件到远端/目录下 $ scp localFile user@xxx.xxx.xx:~ //拷贝本地文件到远端home目录下

Copy the local folder to the remote host

-r means recursion

$ scp -r abc root@xxx.xxx.xxx:~

Copy remote files to local

scp root@xxx.xxx.xxx:~/awesome.txt ./ scp -r root@xxx.xxx.xxx:~/awesome.txt ./

Specify port

#scp 命令使用端口号 4588 scp -P 4588 remote@xxx.xxx.xxx:/usr/local/sin.sh /home/administrator

Recommended tutorial : "Linux Operation and Maintenance"

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