For complex scenarios involving specialized protocols like SFTP or FTPS, lftp is the preferred tool due to its sophisticated scripting engine.
The traditional ftp client can be automated using a ( < ), which feeds commands directly into the interactive prompt without human intervention. Example Script:
-i : Disables interactive prompting during multiple file transfers. linux ftp script download file
-n : Restrains the program from attempting an auto-login via .netrc . -v : Enables verbose mode for detailed log output. Method 2: Using wget for One-Line Downloads
wget -r --user='user' --password='pass' ftp://://example.com Use code with caution. Method 3: Advanced Automation with lftp -v : Enables verbose mode for detailed log output
lftp -u $USER,$PASS $HOST < Use code with caution.
lftp is particularly useful for its command, which synchronizes a local directory with a remote one, only downloading new or changed files. Security Considerations only downloading new or changed files.
linux - Provide commands automatically to ftp in bash script