How to use CP and SCP commands in Linux

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Linux provides us with two commands for file copy, one for CP and one for SCP, but they are slightly different.

CP---mostly used to copy files between different directories on the same computer
SCP---The main is to copy files between different Linux systems back and forth

For specific uses of CP:

Command basic format:
CP [OPTIONS] source DEST---from the source path copy file to the destination path
CP [OPTIONS] SOURCE ... Directory---Copy multiple source files to the specified directory (multiple source files are separated by spaces)

OPTIONS:
-a same AS-DPR as far as possible the source file status, permissions and other data are copied according to original, and is recursive copy;
-R means recursive copy, and if the source contains a directory name, the files under the directory are also copied to the destination;
-F indicates force, if the destination already has the same file name of the file exists, then before the copy is deleted before copying;
Example:
1. Copy the file AAA (already present) and name the BBB:
CP AAA BBB
2. Copy all C-language programs to the finished subdirectory:
CP *.c finished/

For specific uses of SCP:

There are 3 common ways to copy files between different Linux:

The first is FTP, which is one of the Linux installation FTP Server, which can be used in another machine using the FTP client program to copy files.
The second method is to use Samba services, similar to the Windows file copy method to operate, relatively simple and convenient.
The third is the use of SCP commands for file replication.


SCP is a file copy with security, SSH-based login.

Command basic format:
SCP [OPTIONS] File_source File_target


OPTIONS:
-V is the same as-V in most Linux commands to show progress. Can be used to view connections, certifications, or configuration errors
-C Enable Compression option
-P Select the port. Note-P has been used by RCP


Copy from local to remote
scp/home/daisy/full.tar.gz [Email Protected]:/home/root (You will then be prompted to enter the login password of the root user of the other 172.19.2.75 host, and then the copy is copied), copy the directory plus the parameter-R

Copy from remote to local
SCP [Email protected]/172.19.2.75:/home/root/full.tar.gz/home/daisy/full.tar.gz

Here are the additions:

command: CP

Usage rights: All users

How to use:

CP [Options] Source Dest

CP [options] source ... directory

Note: Copy one file to another file, or copy several files to another directory.

The meter

-A as far as possible file status, permissions and other information are reproduced as original.

-R If the source contains a directory name, the files under the directory are also copied to the destination.

-F If a destination already has a file with the same file name, it should be deleted before copying.

Example:

Copy the file AAA (already present) and name the BBB:

CP AAA BBB

Copy all C-language programs to the finished subdirectory:

CP *.c finished

command: SCP

There are 3 common ways to copy files between different Linux:

The first is FTP, which is one of the Linux installation FTP Server, so you can use an FTP client program to copy files.

The second method is to use Samba services, similar to the Windows file copy method to operate, relatively simple and convenient.

The third is the use of SCP commands for file replication.

SCP is a file copy with security, SSH-based login. Easy to operate, for example, to copy the current file to a remote other host, you can command the following.

scp/home/daisy/full.tar.gz [Email Protected]:/home/root

You will then be prompted to enter the login password for the root user of the other 172.19.2.75 host, and then copy is started.

It is also easy to copy files from the remote host to the current system if you want to do this in reverse.
Linux CP/SCP Command +SCP command Details (GO)-Linmaogan-Single wood ★ Forest SCP [Email protected]/full.tar.gz 172.19.2.75:/home/root/full.tar.gz Home/daisy/full.tar.gz

The SCP command of Linux can be used to copy files and directories between Linux;

==================
SCP command
==================
SCP can copy files between 2 Linux hosts;

Command basic format:
SCP [Optional parameters] File_source File_target

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Copy from local to remote
======
* Copy files:
* Command format:
SCP Local_file [Email Protected]_ip:remote_folder
Or
SCP Local_file [Email protected]_ip:remote_file
Or
SCP Local_file Remote_ip:remote_folder
Or
SCP Local_file Remote_ip:remote_file

1th, 2 Specify the user name, command execution after the need to enter the password, the 1th only specifies the remote directory, the file name is unchanged, 2nd specified the file name;
3rd, 4 does not specify a user name, command execution after the need to enter a user name and password, the 3rd only specifies the remote directory, the file name is unchanged, 4th specified the file name;
Example
Scp/home/space/music/1.mp3 [Email Protected]:/home/root/others/music
Scp/home/space/music/1.mp3 [Email Protected]:/home/root/others/music/001.mp3
Scp/home/space/music/1.mp3 Www.cumt.edu.cn:/home/root/others/music
Scp/home/space/music/1.mp3 Www.cumt.edu.cn:/home/root/others/music/001.mp3

* Copy directory:
* Command format:
Scp-r Local_folder [Email protected]_ip:remote_folder
Or
Scp-r Local_folder Remote_ip:remote_folder

The 1th one specifies the user name, the command executes after the need to enter the password;
The 2nd does not specify a user name, the command will need to enter the user name and password after execution;
Example
Scp-r/home/space/music/[Email protected]:/home/root/others/
Scp-r/home/space/music/www.cumt.edu.cn:/home/root/others/

The above command copies the local music directory to the remote others directory, which is remotely available after replication. /others/music/Directory


======
Copy from remote to local
======
From remote copy to local, as long as the copy from the local to the remote command of the following 2 parameter Exchange order;

For example:
SCP R[email Protected]:/home/root/others/music/home/space/music/1.mp3
Scp-r www.cumt.edu.cn:/home/root/others//home/space/music/

The simplest applications are as follows:

SCP Local username @IP address: File name 1 remote user name @IP address: file name 2

[Local User name @IP address:] Can not be entered, you may need to enter the password for the remote user name.

Several parameters that may be useful:

-V is the same as-V in most Linux commands to show progress. Can be used to view connections, certifications, or configuration errors.

-C Enable compression option.

-P Select the port. Note-P has been used by RCP.

-4 forcibly use the IPV4 address.

-6 forcibly use the IPV6 address.

Note two points:
1. If the remote server firewall has special restrictions, the SCP will go to the special port, depending on what port, depending on the situation, the command format is as follows:
#scp-P 4588 [email Protected]:/usr/local/sin.sh/home/administrator
2. Use SCP be aware that the user you are using has permission to read the appropriate files for the remote server.

How to use CP and SCP commands in Linux