Use SCP to securely transfer files between two Unix computers (2023)

andUnix, you can use SCP (scpcommand) to securely copy files and folders between remote computers without bootingFTPsessions or explicitly connect to remote systems. Thatscpuser of the commandSSHto transfer data, so a password or code is requiredApproval. Differentrcpor FTP,scpencrypts both the file and all exchanged passwords so that no one snooping on the network can see them.

Pension

Pension forscpthe command is:

scp [επιλογές] username1@sourcehost:folder1/filename1 username2@destinationhost:folder2/filename2

The source file location is specifiedusername1@sourcehost:folder1/filename1, Which contains:

• host account name (username 1)
• The name of the host computer where the source file is located (original_host)
• The name of the folder containing the source file (card 1)
• Source file name (file name 1)

The location to which the source file is copied is specifiedusername2@destinationhost:folder2/filename2, Which contains:

• Account name on the target computer (username 2)
• The name of the computer to which the source file will be copied (destination_host)
• The name of the folder where the source file will be copied (card 2)
• Copy file name (file name 2)

For more aboutscp, consult himmanual side. At the Unix prompt, type:

scp mand

Examples

For the following examples, let's assume that your username isdvader, and you are logged in to your computer accountcarstvo.gov:

• To copy the file namedrebels.txtfrom your home foldercarstvo.govin the so-called foldervengeanceto your computer accountdeathstar.com, Nurse:

  scp ~/rebels.txt dvader@deathstar.com:~/osveta

  You will be prompted for a password on the target system (deathstar.com). The command will not work if you do not enter the correct password.

• To copy a folder (and all the files it contains), usescps-rChoice. That's what it saysscpto retroactively copy the original library and its contents.

  Da sve kopiramvengeancefolder from yourdeathstar.comYour user accountcarstvo.govaccount, enter:

  scp -r dvader@deathstar.com:~/osveta ~/osveta

  You will be prompted for the password on the source system (deathstar.com). The command will not work if you do not enter the correct password.

• To copy multiple files to a folder, you can use wildcards (eg*the?). However, to use wildcards to copy multiple source files from a remote system, enclose them in quotation marks ("") around the path to the source files. This is necessary because Unixmora, yesscpcommand, expands unquoted wildcards.

  Therefore, copy everything.textfiles fromvengeancefolder in yourdeathstar.comYour user accountvengeancemap enabledcarstvo.gov, Nurse:

  scp dvader@deathstar.com:"osveta/*.txt" ~/osveta/

  You will be prompted for the password on the source system (deathstar.com). The command will not work if you do not enter the correct password.

For the following example, assume that (dvader) connected to another computer (that is, to another computer that is notcarstvo.govthedeathstar.com). Copyluke.txtfrom your home foldercarstvo.govyoursvengeancemap enableddeathstar.com, Nurse:

scp dvader@empire.gov:~/luke.txt dvader@deathstar.com:~/revenge

You will be asked to enter two passwords: one for the source system (carstvo.gov) and one to the target system (deathstar.com). The command will not work if you do not enter both passwords correctly.