lftp is a sophisticated file transfer program with a command-line interface. It supports FTP, HTTP, FISH, SFTP, HTTPS and FTPS protocols. Here are some of the most commonly used parameters:

• -c : Executes the given commands and exits. The commands are executed in the order they appear.
• -p : Specifies the port number to connect to.
• -u : Specifies the username and password to use when connecting.
• -e : Executes the command after connecting.
• -d : Enables debugging output.
• open : Connects to the given server.
• mirror : Mirrors files and directories between local and remote locations. It has its own set of options:
  • -R : Mirrors files from local to remote.
  • -e : Deletes files in the destination that don’t exist in the source.
  • -v : Enables verbose output.
  • --ignore-time : Ignores time when deciding whether to upload a file.
  • --parallel=n : Uploads n files in parallel.
  • --exclude-glob pattern : Excludes files that match the given pattern.
  • --no-perms : Does not set file permissions to match the source files when mirroring.
  • --only-newer : Only transfers files that are newer on the source side.
• get : Downloads the specified file.
• put : Uploads the specified file.
• cd : Changes the current directory on the remote server.
• lcd : Changes the current directory on the local machine.
• ls : Lists files in the current directory on the remote server.
• lls : Lists files in the current directory on the local machine.
• mget : Downloads multiple files.
• mput : Uploads multiple files.
• set : Sets various options, such as ftp:ssl-allow no, which disables SSL for FTP.