ftp command
The ftp command allows you to transfer files to and from a remote server.
Syntax
The syntax for the ftp command is:
ftp [options] [hostname]
Options
| Option | Description |
|---|---|
| -d | Debugging is enabled. |
| -g | Filename globbing is disabled. |
| -i | Interactive prompting is disabled. |
| -n | When you are initially connecting, auto-login is disabled. |
| -v | Display all responses from the server. |
Before you can use the various FTP commands, you must establish a connection with the remote network or computer. Do this by opening a terminal window in Linux and typing ftp followed by a domain name or an IP address of the FTP server, such as ftp 192.168.0.1 or ftp domain.com. For example:
This command attempts to connect to the ftp server at abc.xyz.edu. If it succeeds, it asks you to log in using a username and password. Public FTP servers often allow you to log in using the username anonymous and your email address as a password or with no password at all.
When you log in successfully, you see an ftp> prompt on the terminal screen. Before you go any further, get a list of the available FTP commands using the help function. It is useful because depending on your system and software, some of the FTP commands listed may or may not work.
FTP Command Examples and Descriptions
The FTP commands used with Linux and Unix differ from the FTP commands used with the Windows command line. Here are examples that illustrate typical uses of the Linux FTP commands for remotely copying, renaming, and deleting files.
The help function lists the commands that you can use to show the directory contents, transfer files, and delete files. The command ftp> ? accomplishes the same thing.
This command prints the names of the files and subdirectories in the current directory on the remote computer.
This command changes the current directory to the subdirectory named customersif it exists.
This changes the current directory to the parent directory.
This command changes the current directory on the local computer to images, if it exists.
This changes to ASCII mode for transferring text files. ASCII is the default on most systems.
This command changes to binary mode for transferring all files that are not text files.
This downloads the file image1.jpg from the remote computer to the local computer. Warning: If there already is a file on the local computer with the same name, it is overwritten.
Uploads the file image2.jpg from the local computer to the remote computer. Warning: If there already is a file on the remote computer with the same name, it is overwritten.
Adding an exclamation mark in front of a command executes the specified command on the local computer. So !ls lists the file names and directory names of the current directory on the local computer.
With the mget command. you can download multiple images. This command downloads all files that end with .jpg.
The rename command changes the file named [from] to the new name [to] on the remote server.
This command stores a local file on the remote machine. Send local-file [remote file] does the same thing.
This command uploads all the files that end with .jpg to the active folder on the remote machine.
Deletes the file named remote-file on the remote machine.
This deletes all files that end with .jpg in the active folder on the remote machine.
Determine the size of a file on the remote machine with this command.
Make a new directory on the remote server.
The prompt command turns interactive mode on or off so that commands on multiple files are executed without user confirmation.
The quit command terminates the FTP session and exits the FTP program.
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