FileZilla CLI Common Terminology

Client
A client is a computer application that you use to connect your local computer to a server on the internet. In this case, the client is FileZilla Pro Command Line. Using it, you can add, delete, or edit files and/or directories on the remote server.

Download
When files are transferred from a remote server to a local machine.

FTP
File Transfer Protocol is a basic method for moving files between local and remote computers.
See FTP for more information.

FTPS
File Transfer Protocol with TLS is a secure version of File Transfer Protocol (standard FTP). File transfers are encrypted between FileZilla Pro Command Line and the server. See FTPS for more information.

Local
The machine on which FileZilla Pro Command Line is installed, that you’re using to control file transfers.

MIME Types
MIME stands for Multipurpose Internet Mail Extensions, and it is a technique that servers use to recognise the type of file being used, similar to the way Windows recognises files by their file extension (eg .txt). It helps browsers to figure out what todo with a particular file when you click on a link to it; for example, display it or download it. A MIME type typically consists of a type and a subtype.
Common MIME types are:

  • text
  • mage
  • audio
  • video
  • application

Overwrite
Copying over an existing file with one of the same name and file extension. This is a term you will come across often in FileZilla Pro Command Line documentation, because it is common while copying files to come across files that you or someone else have already copied across, and you will need to tell FileZilla Pro Command Line how to handle this situation. One option is to copy over the existing file with a new one that has the same filename.

Recursive
In terms of FileZilla Pro Command Line, a recursive action on a directory affects all of its subdirectories and files in them. For example, running a delete command on a directory with a number of files in it as well as subdirectories with files in them – perhaps several levels deep – requires FileZilla Pro Command Line to first send a delete command for each file in the bottom layer of directories, then send a delete command for those directories, then send a delete command for files in the second-to-bottom layer of directories, etc, until it reaches the top layer of directories and files.

Remote
The server that FileZilla Pro Command Line will connect to in order to modify directories and files. Often this is geographically remote as well.

Server
A server is a computer that you can connect to via the internet. Servers can be used for a range of activities, but for purposes of FileZilla Pro Command Line, they’re used for uploading and downloading files. For example, a website is generally hosted on a server or cluster of servers, and you can connect to it via its FTP server – a computer dedicated to handling file transfers.

Note: If you want to create an FTP server, you’ll need to use a server program like FileZilla Server.

SFTP
SSH File Transfer Protocol is a method that FileZilla Pro Command Line can use to access and transfer files on a server. It is based on Secure Socket Shell protocol rather than traditional File Transfer Protocol, so it tends to use a server’s SSH port. See SFTP for more information.

TLS
Transport Layer Security (TLS) encrypts communications between FileZilla Pro Command Line and a server. This keeps the files that you’re transferring secure from eavesdroppers while they’re in transit between your local computer and the server. TLS is used in FTPS connections.

Upload
When files are transferred from a local machine to a remote server.

User ID
Also sometimes referred to as a User Name or User Identification. This is the string of text that an application, server, or website recognises as belonging to a particular person. Sometimes your user ID will be your email address; sometimes just a string of characters, for example janesmith98352.

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