Downloads a file from the current working directory
Description
Downloads the binary or text file and saves it to the current working local directory for you to use the downloaded file that is provided in the FTP server.
Command usage
download/get (file)
Examples
download text.txt: Downloads the text file named "text.txt"
get shanghai.png: Downloads the binary image file that shows you the Shanghai city in China and saves it to "shanghai.png"
