Mastering fundamental FTP commands provides the foundation for understanding file transfer operations across all protocols. These commands form the basis of FTP, FTPS, and many SFTP operations.
Connection Commands:
USER username– Authenticate with usernamePASS password– Provide passwordQUIT– Close connection
Navigation Commands:
PWD– Print working directoryCWD directory– Change working directoryLIST– List directory contentsCDUP– Change to parent directory
Transfer Commands:
RETR filename– Download fileSTOR filename– Upload fileTYPE mode– Set transfer mode (ASCII/Binary)PASV– Enter passive mode
File Management:
DELE filename– Delete fileMKD directory– Create directoryRMD directory– Remove directoryRNFR/RNTO– Rename files
Understanding these commands helps students troubleshoot transfer issues and comprehend how graphical FTP clients communicate with servers. Many SFTP clients also support similar command structures, making this knowledge transferable across protocols.