SFTP (SSH File Transfer Protocol) is a secure file protocol used to access, manage and transfer files over an encrypted SSH transfer.
When compared to traditional FTP protocols, SFTP provides all the functions of FTP, and is easier to configure.
perintah scpwhich only allows file transfer, command
sftp It allows you to perform various operations on remote files and resume file transfers.
In this tutorial, we will learn how to use the command
To be able to transfer and manage files via SFTP, you must have write permissions on the remote system.
When transferring large files, it is recommended to run the sftp command inside a tmux screen or session.
The directory where you run the command
sftp It is a local business directory.
SFTP connection being established
SFTP operates on a client-server model. SFTP is a subsystem of SSH and supports all SSH authentication mechanisms.
While traditional password authentication is set by default and is easy to use, if you connect to the server regularly via SSH/SFTP, it is recommended to generate SSH keys and set up a passwordless SFTP login.
To open an SFTP connection to a remote system, use the sftp command followed by the remote server’s username and IP address or domain name:
sftp [email protected]_ip_or_hostname
If you are using password authentication, you will be asked to enter the user password. Once connected, the remote server will display a confirmation message and an sftp prompt.
Connected to [email protected]_ip_atau_hostname. sftp>
If the SSH server is not on the default port 22, use the option
oPort which defines an alternate port:
sftp -oPort=custom_port [email protected]_ip_atau_hostname
SFTP command set
Most SFTP commands are the same or identical to the commands you’ll use at the Linux shell prompt.
You can get a list of all available SFTP commands by typing
help or symbol
Available commands: bye Quit sftp cd path Change remote directory to 'path' ... ... version Show SFTP version !command Execute 'command' in local shell ! Escape to local shell ? Synonym for help
Navigating in SFTP
After logging in to the remote server, the current working directory is the user’s home directory on the remote machine. You can check this by typing:
Remote working directory: /home/remote_username
To list files and directories, use the ls command:
To navigate to another directory, use the cd command. For example, the command to move to a directory
All of the above commands are used to navigate and work in remote locations. The Sftp prompt also provides commands to navigate the local machine, view information, and manage files.
For example, to print the local working directory, we can write:
Local working directory: /home/local_username
How to transfer files using SFTP
SFTP allows you to securely transfer files between two devices.
If your computer has GUI access, it is actually easier to use a desktop SFTP client such as WinSCP or FileZilla to connect to a remote server to download or upload files. However, the sftp command is useful when you are working on both machines without a GUI (command line only).
How to download files with SFTP command
After logging in to the remote server, the current working directory is the remote user’s home directory.
When downloading a file with the command
sftpthe file will be downloaded to the directory where you typed the command
To download a single file from a remote server, use the command
The output will look like this:
Fetching /home/remote_username/namafile.zip to namafile.zip /home/remote_username/namafile.zip 100% 24MB 1.8MB/s 00:13
If you want to save the downloaded file with a different name, say the name after it:
get namafile.zip namafilebaru.zip
To download a directory from a remote system, use the options
get -r remote_directory
If the file transfer fails, you can continue to use the command
reget same grammar
How to upload files with SFTP command
To upload files from a local directory to a remote FTP server, use the command
The output will look like this:
Uploading filename.zip to /home/remote_username/filename.zip namafile.zip 100% 12MB 1.7MB/s 00:06
If you want to load a file that is not in the current working directory, use the absolute path of the file.
When using the command
putyou can use the same options available with the command
To copy a local directory, use the following command:
put -r direktori_lokal
To resume interrupted downloads:
Server management using SFTP
SFTP allows you to perform some basic file processing commands. Here are some examples of how to use an SFTP wrapper:
- Displays remote system disk usage statistics:
Size Used Avail (root) %Capacity 20616252 1548776 18002580 19067476 7%
- Create a new directory on the remote server:
- Rename files on the remote server:
rename nama_file nama_baru
- Delete files on the remote server:
- Delete the directory on the remote server:
- Change file permissions on the remote system:
chmod 644 nama_file
- Change the owner of the file on the remote system:
chown user_id nama_file
You have to give the user ID of the command
- Change the owner of the remote file group with:
chgrp group_id file_name
When you are done working, you can close the connection simply by typing
In this tutorial, you learned how to use the sftp command to download and upload files to a remote SFTP server.
If you regularly connect to the same system, you can simplify your workflow by specifying all connections in your SSH configuration file.